ID CVE-2021-33910 Type cve Reporter cve@mitre.org Modified 2021-09-07T21:15:00
Description
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.
{"redhatcve": [{"lastseen": "2021-09-02T22:27:57", "description": "A flaw was found in systemd. The use of alloca function with an uncontrolled size in function unit_name_path_escape allows a local attacker, able to mount a filesystem on a very long path, to crash systemd and the whole system by allocating a very large space in the stack. The highest threat from this vulnerability is to the system availability.\n#### Mitigation\n\nRed Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible. \n\n", "cvss3": {}, "published": "2021-07-20T12:55:28", "type": "redhatcve", "title": "CVE-2021-33910", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-30T09:55:27", "id": "RH:CVE-2021-33910", "href": "https://access.redhat.com/security/cve/cve-2021-33910", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-09-02T22:27:57", "description": "An out-of-bounds write flaw was found in the Linux kernel's seq_file in the Filesystem layer. This flaw allows a local attacker with a user privilege to gain access to out-of-bound memory, leading to a system crash or a leak of internal kernel information. The issue results from not validating the size_t-to-int conversion prior to performing operations. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.\n#### Mitigation\n\nRed Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible. \n\n", "cvss3": {}, "published": "2021-07-20T12:55:12", "type": "redhatcve", "title": "CVE-2021-33909", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-33909", "CVE-2021-33910"], "modified": "2021-07-30T09:55:27", "id": "RH:CVE-2021-33909", "href": "https://access.redhat.com/security/cve/cve-2021-33909", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "ubuntucve": [{"lastseen": "2021-07-31T21:19:59", "description": "basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a\nMemory Allocation with an Excessive Size Value (involving strdupa and\nalloca for a pathname controlled by a local attacker) that results in an\noperating system crash.", "cvss3": {}, "published": "2021-07-20T00:00:00", "type": "ubuntucve", "title": "CVE-2021-33910", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-20T00:00:00", "id": "UB:CVE-2021-33910", "href": "https://ubuntu.com/security/CVE-2021-33910", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "f5": [{"lastseen": "2021-09-01T12:57:56", "description": "basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash. ([CVE-2021-33910](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33910>))\n\nImpact\n\nThere is no impact; F5 products are not affected by this vulnerability.\n", "cvss3": {}, "published": "2021-08-03T00:43:00", "type": "f5", "title": "systemd vulnerability CVE-2021-33910", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-08-03T00:43:00", "id": "F5:K50642058", "href": "https://support.f5.com/csp/article/K50642058", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "qualysblog": [{"lastseen": "2021-07-30T08:33:40", "description": "The Qualys Research Team has discovered a stack exhaustion denial-of-service vulnerability in systemd, a near-ubiquitous utility available on major Linux operating systems. Any unprivileged user can exploit this vulnerability to crash systemd and hence the entire operating system (a kernel panic).\n\n### About systemd\n\n`systemd` is a software suite that\u2019s included in most Linux-based OSes. It provides an array of system components for Linux operating systems. It provides a system and service manager that runs as PID 1 and starts the rest of the system.\n\n### Impact\n\nThis vulnerability was introduced in systemd v220 (April 2015) by commit 7410616c ("core: rework unit name validation and manipulation logic"), which replaced a strdup() in the heap with a strdupa() on the stack. Successful exploitation of this vulnerability allows any unprivileged user to cause denial of service via kernel panic.\n\nAs soon as the Qualys research team confirmed the vulnerability, Qualys engaged in responsible vulnerability disclosure and coordinated with author and open-source distributions to announce the vulnerability.\n\n### Disclosure Timeline\n\n * **2021-06-09**: We sent our advisories for CVE-2021-33909 and CVE-2021-33910 to Red Hat Product Security (the two vulnerabilities are closely related and the systemd-security mailing list is hosted by Red Hat).\n * **2021-07-06**: We sent our advisories, and Red Hat sent the patches they wrote, to the linux-distros@openwall mailing list.\n * **2021-07-20**: Coordinated Release Date (12:00 PM UTC)\n\n### Technical Details\n\nsystemd monitors and parses the contents of /proc/self/mountinfo, and passes each mountpoint path to mount_setup_unit(), which passes it to unit_name_from_path(), which passes it to unit_name_path_escape():\n \n \n ------------------------------------------------------------------\n 1720 static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {\n \u2026.\n 1727 r = libmount_parse(NULL, NULL, &table, &iter);\n \u2026.\n 1731 for (;;) {\n \u2026.\n 1735 r = mnt_table_next_fs(table, iter, &fs);\n \u2026.\n 1742 path = mnt_fs_get_target(fs);\n \u2026.\n 1751 (void) mount_setup_unit(m, device, path, options, fstype, set_flags);\n ------------------------------------------------------------------\n 1644 static int mount_setup_unit(\n 1645 Manager *m,\n 1646 const char *what,\n 1647 const char *where,\n 1648 const char *options,\n 1649 const char *fstype,\n 1650 bool set_flags) {\n \u2026.\n 1683 r = unit_name_from_path(where, \".mount\", &e);\n ------------------------------------------------------------------\n 512 int unit_name_from_path(const char *path, const char *suffix, char **ret) {\n \u2026\n 523 r = unit_name_path_escape(path, &p);\n ------------------------------------------------------------------\n 380 int unit_name_path_escape(const char *f, char **ret) {\n \u2026\n 386 p = strdupa(f);\n ------------------------------------------------------------------\n \n\nAt line 386, unit_name_path_escape() passes the mountpoint path to strdupa(), which is similar to strdup() but allocates memory on the stack (via alloca()), not in the heap (via malloc()).\n\nAs a result, if the total path length of this mountpoint exceeds 8MB (the default RLIMIT_STACK), then systemd crashes with a segmentation fault that also crashes the entire operating system (a kernel panic, because systemd is the "global init", PID 1).\n\n### Solution\n\nGiven the breadth of the attack surface for this vulnerability, Qualys recommends users apply patches for this vulnerability immediately.\n\nQualys customers can search the vulnerability knowledgebase for CVE-2021-33910 to identify all the QIDs and assets vulnerable for this vulnerability.\n\nIf you are not a customer, start your free Qualys VMDR trial to get full access to the QIDs (detections) for CVE-2021-33910, so you can identify your vulnerable assets.\n\n### Qualys Coverage\n\nQualys is releasing the QIDs in the table below as they become available starting with vulnsigs version VULNSIGS-2.5.237-3 and in Linux Cloud Agent manifest version lx_manifest-2.5.237.3-2\n\n**QID**| **Title**| **VulnSigs Version** \n---|---|--- \n750846| OpenSUSE Security Update for the systemd (openSUSE-SU-2021:2410-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n750845| OpenSUSE Security Update for the systemd (openSUSE-SU-2021:2404-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n750843| SUSE Enterprise Linux Security Update for systemd (SUSE-SU-2021:2405-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n178711| Debian Security Update for systemd (DLA 2715-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n178709| Debian Security Update for systemd (DSA 4942-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n375711 | Linux systemd Denial of Service Vulnerability| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n \n### Discover Vulnerable Linux Servers Using Qualys VMDR\n\n#### Identify Assets Running systemd\n\nThe first step in managing these critical vulnerabilities and reducing risk is identification of assets running systemd software. [Qualys VMDR](<https://www.qualys.com/apps/vulnerability-management-detection-response/>) makes it easy to identify such assets.\n\nQuery: `software:(name:\"systemd\")`\n\n\n\nOnce the hosts are identified, they can be grouped together with a \u2018dynamic tag\u2019, let\u2019s say \u2013 \u201cLinux systemd Servers\u201d. This helps in automatically grouping existing hosts with the above vulnerabilities as well as any new Linux assets that spin up in your environment. Tagging makes these grouped assets available for querying, reporting and management throughout the [Qualys Cloud Platform](<https://www.qualys.com/cloud-platform/>).\n\n### Prioritize Based on RTIs\n\nUsing VMDR, the Exim vulnerabilities can be prioritized using the following real-time threat indicators (RTIs):\n\nPredicted_High_Risk \nDenial_of_Service \nEasy_Exploit \n\n\n\n\n### Detect Impacted Assets with Threat Protection\n\nVMDR also enables you to automatically map assets vulnerable to these vulnerabilities using Threat Protect.\n\n\n\n### Dashboard\n\nWith VMDR Unified Dashboard, you can track this vulnerability, their impacted hosts, their status and overall management in real time. With trending enabled for dashboard widgets, you can keep track of these vulnerabilities trends in your environment.\n\nView and download the ["Sequoia" dashboard](<https://success.qualys.com/support/s/article/000006731>):\n\n\n\n### Vendor References\n\n<https://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt>\n\n### Frequently Asked Questions (FAQs)\n\n##### What versions are vulnerable?\n\nAll systemd versions from April 2015 onwards are vulnerable.\n\n##### Will the Qualys Research Team publish exploit code for this vulnerability?\n\nA PoC is attached with the advisory and available at <https://www.qualys.com/research/security-advisories/>.\n\n##### Are there any mitigations for this vulnerability?\n\nNo.", "cvss3": {}, "published": "2021-07-20T12:55:42", "type": "qualysblog", "title": "CVE-2021-33910: Denial of Service (Stack Exhaustion) in systemd (PID 1)", "bulletinFamily": "blog", "cvss2": {}, "cvelist": ["CVE-2021-33909", "CVE-2021-33910"], "modified": "2021-07-20T12:55:42", "id": "QUALYSBLOG:EDB9746552584C4E9F26754E4AB13D5B", "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-07-30T08:33:40", "description": "The Qualys Research Team has discovered a size_t-to-int type conversion vulnerability in the Linux Kernel\u2019s filesystem layer affecting most Linux operating systems. Any unprivileged user can gain root privileges on a vulnerable host by exploiting this vulnerability in a default configuration.\n\n\n\n### About Linux Filesystem\n\nA file system is an organization of data and metadata on a storage device. It controls how the data is stored and retrieved, and its most important function is to manage user data. The Linux file system interface is implemented as a layered architecture, separating the user interface layer from the file system implementation and from the drivers that manipulate the storage devices. It is the most important function of any operating system and is ubiquitous on all major Linux operating systems.\n\n### Impact\n\nSuccessful exploitation of this vulnerability allows any unprivileged user to gain root privileges on the vulnerable host. Qualys security researchers have been able to independently verify the vulnerability, develop an exploit, and obtain full root privileges on default installations of Ubuntu 20.04, Ubuntu 20.10, Ubuntu 21.04, Debian 11, and Fedora 34 Workstation. Other Linux distributions are likely vulnerable and probably exploitable.\n\nAs soon as the Qualys research team confirmed the vulnerability, Qualys engaged in responsible vulnerability disclosure and coordinated with vendor and open-source distributions to announce the vulnerability.\n\n### Disclosure Timeline\n\n * **2021-06-09**: The Qualys Research Team (QRT) sent advisories for CVE-2021-33909 and CVE-2021-33910 to Red Hat Product Security (the two vulnerabilities are closely related, and the systemd-security mailing list is hosted by Red Hat).\n * **2021-07-06**: QRT sent advisories, and Red Hat sent the patches they wrote, to the linux-distros@openwall mailing list.\n * **2021-07-13**: QRT sent advisory for CVE-2021-33909, and Red Hat sent the patch they wrote, to the security@kernel mailing list.\n * **2021-07-20**: Coordinated Release Date (12:00 PM UTC).\n\n### Proof of Concept Video\n\n### Technical Details\n\nThe Linux kernel's seq_file interface produces virtual files that contain sequences of records (for example, many files in /proc are seq_files, and records are usually lines). Each record must fit into a seq_file buffer, which is therefore enlarged as needed, by doubling its size at line 242 (seq_buf_alloc() is a simple wrapper around kvmalloc()):\n \n \n ------------------------------------------------------------------------\n 168 ssize_t seq_read_iter(struct kiocb *iocb, struct iov_iter *iter)\n 169 {\n 170 struct seq_file _m = iocb->ki_filp->private_data; _\n _\u2026 _\n _205 /_ grab buffer if we didn't have one */\n 206 if (!m->buf) {\n 207 m->buf = seq_buf_alloc(m->size = PAGE_SIZE);\n \u2026\n 210 }\n \u2026\n 220 // get a non-empty record in the buffer\n \u2026\n 223 while (1) {\n \u2026\n 227 err = m->op->show(m, p);\n \u2026\n 236 if (!seq_has_overflowed(m)) // got it\n 237 goto Fill;\n 238 // need a bigger buffer\n \u2026\n 240 kvfree(m->buf);\n \u2026\n 242 m->buf = seq_buf_alloc(m->size <<= 1);\n \u2026\n 246 }\n ------------------------------------------------------------------------\n\nThis size multiplication is not a vulnerability in itself, because m->size is a size_t (an unsigned 64-bit integer, on x86_64), and the system would run out of memory long before this multiplication overflows the integer m->size. Unfortunately, this size_t is also passed to functions whose size argument is an int (a signed 32-bit integer), not a size_t. For example, the show_mountinfo() function (which is called at line 227 to format the records in /proc/self/mountinfo) calls seq_dentry() (at line 150), which calls dentry_path() (at line 530), which calls prepend() (at line 387):\n \n \n ------------------------------------------------------------------------\n 135 static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)\n 136 {\n \u2026\n 150 seq_dentry(m, mnt->mnt_root, \" \\t\\n\\\");\n ------------------------------------------------------------------------\n 523 int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc)\n 524 {\n 525 char *buf;\n 526 size_t size = seq_get_buf(m, &buf);\n \u2026\n 529 if (size) {\n 530 char *p = dentry_path(dentry, buf, size);\n ------------------------------------------------------------------------\n 380 char *dentry_path(struct dentry *dentry, char *buf, int buflen)\n 381 {\n 382 char *p = NULL;\n \u2026\n 385 if (d_unlinked(dentry)) {\n 386 p = buf + buflen;\n 387 if (prepend(&p, &buflen, \"//deleted\", 10) != 0)\n ------------------------------------------------------------------------\n 11 static int prepend(char **buffer, int *buflen, const char *str, int namelen)\n 12 {\n 13 *buflen -= namelen;\n 14 if (*buflen < 0)\n 15 return -ENAMETOOLONG;\n 16 *buffer -= namelen;\n 17 memcpy(*buffer, str, namelen);\n ------------------------------------------------------------------------\n\nAs a result, if an unprivileged local attacker creates, mounts, and deletes a deep directory structure whose total path length exceeds 1GB, and if the attacker open()s and read()s /proc/self/mountinfo, then:\n\n * in seq_read_iter(), a 2GB buffer is vmalloc()ated (line 242), and show_mountinfo() is called (line 227);\n * in show_mountinfo(), seq_dentry() is called with the empty 2GB buffer (line 150);\n * in seq_dentry(), dentry_path() is called with a 2GB size (line 530);\n * in dentry_path(), the int buflen is therefore negative (INT_MIN, -2GB), p points to an offset of -2GB below the vmalloc()ated buffer (line 386), and prepend() is called (line 387);\n * in prepend(), *buflen is decreased by 10 bytes and becomes a large but positive int (line 13), *buffer is decreased by 10 bytes and points to an offset of -2GB-10B below the vmalloc()ated buffer (line 16), and the 10-byte string "//deleted" is written out of bounds (line 17).\n\n### Solution\n\nGiven the breadth of the attack surface for this vulnerability, Qualys recommends users apply patches for this vulnerability immediately.\n\nQualys customers can search the vulnerability knowledgebase for CVE-2021-33909 to identify all the QIDs and assets vulnerable for this vulnerability.\n\nIf you are not a customer, start your free Qualys VMDR trial to get full access to the QIDs (detections) for CVE-2021-33909, so you can identify your vulnerable assets.\n\n### Qualys Coverage\n\nQualys is releasing the QIDs in the table below as they become available starting with vulnsigs version VULNSIGS-2.5.237-3 and in Linux Cloud Agent manifest version lx_manifest-2.5.237.3-2\n\n**QID**| **Title**| **VulnSigs Version** \n---|---|--- \n750847| OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:2409-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n750844| SUSE Enterprise Linux Security Update for kernel (SUSE-SU-2021:2407-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n178710| Debian Security Update for linux (DSA 4941-1)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n375710 | Linux Kernel Local Privilege Escalation Vulnerability (Sequoia)| VULNSIGS-2.5.237-3 / lx_manifest-2.5.237.3-2 \n \n### Discover Vulnerable Linux Servers Using Qualys VMDR\n\n#### Identify Assets Running Linux Kernel\n\nThe first step in managing these critical vulnerabilities and reducing risk is identification of assets running Linux OS. [Qualys VMDR](<https://www.qualys.com/apps/vulnerability-management-detection-response/>) makes it easy to identify such assets.\n\nQuery: operatingSystem.category1:`Linux`\n\n\n\nOnce the hosts are identified, they can be grouped together with a \u2018dynamic tag\u2019, let\u2019s say \u2013 \u201cLinux Servers\u201d. This helps in automatically grouping existing hosts with the above vulnerabilities as well as any new Linux assets that spin up in your environment. Tagging makes these grouped assets available for querying, reporting and management throughout the [Qualys Cloud Platform](<https://www.qualys.com/cloud-platform/>).\n\n#### Prioritize Based on RTIs\n\nUsing Qualys VMDR, the vulnerabilities can be prioritized using the following real-time threat indicators (RTIs):\n\nPredicted_High_Risk \nPrivilege_Escalation \nEasy_Exploit \nHigh_Lateral_Movement\n\n\n\n#### Detect Impacted Assets with Threat Protection\n\nVMDR also enables you to automatically map assets vulnerable to these vulnerabilities using Threat Protection.\n\n\n\n### Dashboard\n\nWith VMDR Unified Dashboard, you can track this vulnerability, their impacted hosts, their status and overall management in real time. With trending enabled for dashboard widgets, you can keep track of these vulnerabilities trends in your environment using the \u201cSequoia\u201d Dashboard.\n\nView and download the ["Sequoia" dashboard](<https://success.qualys.com/support/s/article/000006731>):\n\n\n\n### Vendor References\n\n<https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-escalation-linux.txt>\n\n### Frequently Asked Questions (FAQs)\n\n##### What versions are vulnerable?\n\nAll Linux kernel versions from 2014 onwards are vulnerable.\n\n##### Will the Qualys Research Team publish exploit code for this vulnerability?\n\nA PoC is attached with the advisory and available at <https://www.qualys.com/research/security-advisories/>.\n\n##### Are there any mitigations for this vulnerability?\n\nThe following mitigations prevent only our specific exploit from working (but other exploitation techniques may exist); to completely fix this vulnerability, the kernel must be patched.\n\n * Set /proc/sys/kernel/unprivileged_userns_clone to 0, to prevent an attacker from mounting a long directory in a user namespace. However, the attacker may mount a long directory via FUSE instead; we have not fully explored this possibility, because we accidentally stumbled upon CVE-2021-33910 in systemd: if an attacker FUSE-mounts a long directory (longer than 8MB), then systemd exhausts its stack, crashes, and therefore crashes the entire operating system (a kernel panic).\n * Set /proc/sys/kernel/unprivileged_bpf_disabled to 1, to prevent an attacker from loading an eBPF program into the kernel. However, the attacker may corrupt other vmalloc()ated objects instead (for example, thread stacks), but we have not investigated this possibility.\n\n##### **Why is the vulnerability named \u201cSequoia\u201d?**\n\nThe bug is in Linux's seq_file interface, and "Sequoia sempervirens" is a tree that has wide-spreading roots: a pun on the bug's deep directory tree that yields root privileges.", "cvss3": {}, "published": "2021-07-20T12:54:49", "type": "qualysblog", "title": "Sequoia: A Local Privilege Escalation Vulnerability in Linux\u2019s Filesystem Layer (CVE-2021-33909)", "bulletinFamily": "blog", "cvss2": {}, "cvelist": ["CVE-2021-33909", "CVE-2021-33910"], "modified": "2021-07-20T12:54:49", "id": "QUALYSBLOG:8F40D4EEA566F77FEE943CD2DB7E00CF", "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "redhat": [{"lastseen": "2021-08-25T20:36:59", "description": "The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.\n\nSecurity Fix(es):\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-07-20T23:58:30", "type": "redhat", "title": "(RHSA-2021:2717) Important: systemd security update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-21T02:02:38", "id": "RHSA-2021:2717", "href": "https://access.redhat.com/errata/RHSA-2021:2717", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-08-25T20:36:14", "description": "The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.\n\nSecurity Fix(es):\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-07-20T23:46:58", "type": "redhat", "title": "(RHSA-2021:2721) Important: systemd security update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-21T01:19:10", "id": "RHSA-2021:2721", "href": "https://access.redhat.com/errata/RHSA-2021:2721", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-08-25T20:37:36", "description": "The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.\n\nSecurity Fix(es):\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-07-21T00:02:59", "type": "redhat", "title": "(RHSA-2021:2724) Important: systemd security update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-21T01:19:07", "id": "RHSA-2021:2724", "href": "https://access.redhat.com/errata/RHSA-2021:2724", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-08-25T20:35:59", "description": "Red Hat OpenShift Container Platform is Red Hat's cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nThe kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nThe kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nAnsible is a SSH-based configuration management, deployment, and task execution system. The openshift-ansible packages contain Ansible code and playbooks for installing and upgrading OpenShift Container Platform 3.\n\nThe systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.\n\nSecurity Fix(es):\n\n* kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* kernel-rt: update RT source tree to the RHEL-8.3.z source tree (BZ#1957359)\n\n* Placeholder bug for OCP 4.7.0 rpm release (BZ#1983534)", "cvss3": {}, "published": "2021-07-26T20:10:54", "type": "redhat", "title": "(RHSA-2021:2763) Important: OpenShift Container Platform 4.7.21 security and bug fix update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33909", "CVE-2021-33910"], "modified": "2021-07-28T16:22:28", "id": "RHSA-2021:2763", "href": "https://access.redhat.com/errata/RHSA-2021:2763", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-08-25T20:34:50", "description": "The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.\n\nThe redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. \n\nThe ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.\n\nSecurity Fix(es):\n\n* kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\n* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)\n\n* ansible: multiple modules expose secured values (CVE-2021-3447)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* The redhat-release-virtualization-host package no longer requires vdsm-hooks. In this release, the installation of vdsm-hooks is not mandatory for the Red Hat Virtualization Host. (BZ#1976095)\n\n* Previously, rhsmcertd was not enabled by default on the Red Hat Virtualization Host. As a result, the systems did not regularly report to RHSM while the subscription-manager reported no obvious issues and repositories were properly enabled.\nIn this release, rhsmcertd is enabled by default in RHVH, and as a result, RHSM now receives reports regularly. (BZ#1958145)\n\n* In this release, the Red Hat Virtualization Host has been rebased on top of the RHEL 8.4.0 Batch #1 update. For more information, see the RHEL release notes. (BZ#1957242)\n\n* Red Hat Virtualization Host now includes an updated scap-security-guide-rhv which allows you to apply a PCI DSS security profile to the system during installation, (BZ#1883793)", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-07-22T18:08:07", "type": "redhat", "title": "(RHSA-2021:2736) Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-32399", "CVE-2021-33034", "CVE-2021-33909", "CVE-2021-33910", "CVE-2021-3447"], "modified": "2021-07-26T14:37:28", "id": "RHSA-2021:2736", "href": "https://access.redhat.com/errata/RHSA-2021:2736", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-08-25T20:36:08", "description": "Red Hat OpenShift distributed tracing (formerly OpenShift Jaeger) is Red Hat's distribution of the Jaeger project, tailored for installation into an on-premise OpenShift Container Platform\ninstallation.\n\nSecurity Fix(es):\n\n* nodejs-ua-parser-js: ReDoS via malicious User-Agent header (CVE-2021-27292)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-08-09T11:24:45", "type": "redhat", "title": "(RHSA-2021:3024) Low: Red Hat OpenShift Jaeger 1.24.0 Operator/Operand Containers security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-20271", "CVE-2021-27292", "CVE-2021-33910", "CVE-2021-3516", "CVE-2021-3517", "CVE-2021-3518", "CVE-2021-3520", "CVE-2021-3537", "CVE-2021-3541"], "modified": "2021-08-09T11:25:11", "id": "RHSA-2021:3024", "href": "https://access.redhat.com/errata/RHSA-2021:3024", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-25T20:36:44", "description": "OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform.\n\nThis advisory contains the following OpenShift Virtualization 4.8.1 images:\n\nRHEL-8-CNV-4.8\n==============\n\nkubevirt-v2v-conversion-container-v4.8.1-1\nbridge-marker-container-v4.8.1-2\nnode-maintenance-operator-container-v4.8.1-1\ncnv-containernetworking-plugins-container-v4.8.1-1\nvirtio-win-container-v4.8.1-1\novs-cni-plugin-container-v4.8.1-2\nkubevirt-vmware-container-v4.8.1-1\nkubernetes-nmstate-handler-container-v4.8.1-2\ncluster-network-addons-operator-container-v4.8.1-2\nkubemacpool-container-v4.8.1-2\novs-cni-marker-container-v4.8.1-2\ncnv-must-gather-container-v4.8.1-4\nvirt-operator-container-v4.8.1-2\nvm-import-virtv2v-container-v4.8.1-2\nvm-import-operator-container-v4.8.1-2\nvm-import-controller-container-v4.8.1-2\nkubevirt-template-validator-container-v4.8.1-2\nvirt-cdi-cloner-container-v4.8.1-5\nvirt-cdi-controller-container-v4.8.1-5\nvirt-cdi-operator-container-v4.8.1-5\nvirt-cdi-apiserver-container-v4.8.1-5\nhostpath-provisioner-operator-container-v4.8.1-3\nvirt-cdi-uploadproxy-container-v4.8.1-5\nvirt-cdi-importer-container-v4.8.1-5\nhyperconverged-cluster-operator-container-v4.8.1-3\nvirt-cdi-uploadserver-container-v4.8.1-5\nhyperconverged-cluster-webhook-container-v4.8.1-3\nhostpath-provisioner-container-v4.8.1-2\nkubevirt-ssp-operator-container-v4.8.1-5\nvirt-launcher-container-v4.8.1-3\nvirt-api-container-v4.8.1-3\nvirt-handler-container-v4.8.1-3\nvirt-controller-container-v4.8.1-3\nhco-bundle-registry-container-v4.8.1-18\n\nSecurity Fix(es):\n\n* gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation (CVE-2021-3121)\n\n* golang: crypto/tls: certificate of wrong type is causing TLS client to panic (CVE-2021-34558)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* [CNV 2.4.3] oc vm delete doesn't complete sometimes (BZ#1900631)\n\n* Migration fails with read only cdrom drive attached (BZ#1927378)\n\n* [CNV-2.5] Manifests in openshift-cnv missing resource requirements - Network (BZ#1935218)\n\n* [RFE][v2v] Expose the vddk library version loaded by nbdkit (BZ#1937405)\n\n* New OCP priority classes are not used - Network (BZ#1953482)\n\n* Migration fails with read only cdrom drive attached on \"timed out waiting for domain to be defined\" (BZ#1966903)\n\n* cfgMap kubevirt-ca brought in by kubevirt does not get reconciled (BZ#1968410)\n\n* Update nmstate version in CNV (BZ#1971262)\n\n* virt-api - deprecated API is used (BZ#1972762)\n\n* Pending VMIs when creating concurrent bulk of VMs backed by WFFC DVs (BZ#1974289)\n\n* Migration of 'Migratable' VMs fails although live migration is enabled for the target environment (BZ#1977277)\n\n* CDI importer doesn't report AwaitingVDDK like it used to (BZ#1979957)\n\n* [4.8.1] Cloning DataVolumes between namespaces fails while creating cdi-upload pod (BZ#1982269)\n\n* VMs Migration from a specific VMware fails the importer, on NfcFssrvrProcessErrorMsg (BZ#1984775)\n\n* [RFE] Keep the VddkInitImage value in the v2v-vmware conigMap when upgrading CNV from 2.6 to CNV-4.8 (BZ#1984801)\n\n* CDI Importer fails on large qcow2.gz (BZ#1989170)\n\n* 4.8.1 containers (BZ#1989410)\n\n* [hpp] CNV Daemonsets have maxUnavailable set to 1 which leads to very slow upgrades on large clusters (BZ#1990063)", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-08-24T16:14:15", "type": "redhat", "title": "(RHSA-2021:3259) Moderate: OpenShift Virtualization 4.8.1 Images security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2015-8011", "CVE-2020-8203", "CVE-2021-20271", "CVE-2021-27218", "CVE-2021-3121", "CVE-2021-32399", "CVE-2021-33909", "CVE-2021-33910", "CVE-2021-34558", "CVE-2021-3516", "CVE-2021-3517", "CVE-2021-3518", "CVE-2021-3520", "CVE-2021-3537", "CVE-2021-3541"], "modified": "2021-08-24T16:14:52", "id": "RHSA-2021:3259", "href": "https://access.redhat.com/errata/RHSA-2021:3259", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-25T20:37:48", "description": "OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform.\n\nThis advisory contains the following OpenShift Virtualization <version_number> images:\n\nRHEL-8-CNV-2.6\n\nhostpath-provisioner-container-v2.6.6-3\nvm-import-controller-container-v2.6.6-5\nvm-import-virtv2v-container-v2.6.6-5\nvm-import-operator-container-v2.6.6-5\nvirt-cdi-apiserver-container-v2.6.6-4\nvirt-cdi-controller-container-v2.6.6-4\nvirt-cdi-cloner-container-v2.6.6-4\nvirt-cdi-importer-container-v2.6.6-4\nvirt-cdi-uploadserver-container-v2.6.6-4\nvirt-cdi-uploadproxy-container-v2.6.6-4\nvirt-cdi-operator-container-v2.6.6-4\novs-cni-marker-container-v2.6.6-5\nkubevirt-ssp-operator-container-v2.6.6-5\nkubemacpool-container-v2.6.6-7\nkubevirt-vmware-container-v2.6.6-4\nkubevirt-kvm-info-nfd-plugin-container-v2.6.6-4\nkubevirt-cpu-model-nfd-plugin-container-v2.6.6-4\nkubevirt-cpu-node-labeller-container-v2.6.6-4\nvirtio-win-container-v2.6.6-4\nkubevirt-template-validator-container-v2.6.6-4\ncnv-containernetworking-plugins-container-v2.6.6-4\nnode-maintenance-operator-container-v2.6.6-4\nkubevirt-v2v-conversion-container-v2.6.6-4\ncluster-network-addons-operator-container-v2.6.6-4\novs-cni-plugin-container-v2.6.6-4\nbridge-marker-container-v2.6.6-4\nkubernetes-nmstate-handler-container-v2.6.6-7\nhyperconverged-cluster-webhook-container-v2.6.6-4\ncnv-must-gather-container-v2.6.6-16\nhyperconverged-cluster-operator-container-v2.6.6-4\nvirt-launcher-container-v2.6.6-7\nhostpath-provisioner-operator-container-v2.6.6-5\nvirt-api-container-v2.6.6-7\nvirt-handler-container-v2.6.6-7\nvirt-controller-container-v2.6.6-7\nvirt-operator-container-v2.6.6-7\nhco-bundle-registry-container-v2.6.6-70\n\nSecurity Fix(es):\n\n* golang: crypto/elliptic: incorrect operations on the P-224 curve (CVE-2021-3114)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-08-10T17:16:13", "type": "redhat", "title": "(RHSA-2021:3119) Moderate: OpenShift Virtualization 2.6.6 Images security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-10228", "CVE-2017-14502", "CVE-2019-13012", "CVE-2019-14866", "CVE-2019-25013", "CVE-2019-25032", "CVE-2019-25034", "CVE-2019-25035", "CVE-2019-25036", "CVE-2019-25037", "CVE-2019-25038", "CVE-2019-25039", "CVE-2019-25040", "CVE-2019-25041", "CVE-2019-25042", "CVE-2019-2708", "CVE-2019-9169", "CVE-2020-12362", "CVE-2020-12363", "CVE-2020-12364", "CVE-2020-13434", "CVE-2020-13543", "CVE-2020-13584", "CVE-2020-14344", "CVE-2020-14345", "CVE-2020-14346", "CVE-2020-14347", "CVE-2020-14360", "CVE-2020-14361", "CVE-2020-14362", "CVE-2020-14363", "CVE-2020-15358", "CVE-2020-25659", "CVE-2020-25712", "CVE-2020-26116", "CVE-2020-26137", "CVE-2020-27618", "CVE-2020-27619", "CVE-2020-28196", "CVE-2020-28935", "CVE-2020-29361", "CVE-2020-29362", "CVE-2020-29363", "CVE-2020-36242", "CVE-2020-8231", "CVE-2020-8284", "CVE-2020-8285", "CVE-2020-8286", "CVE-2020-8927", "CVE-2020-9948", "CVE-2020-9951", "CVE-2020-9983", "CVE-2021-20201", "CVE-2021-20271", "CVE-2021-23239", "CVE-2021-23240", "CVE-2021-23336", "CVE-2021-25215", "CVE-2021-25217", "CVE-2021-27219", "CVE-2021-28211", "CVE-2021-3114", "CVE-2021-3177", "CVE-2021-32399", "CVE-2021-3326", "CVE-2021-33909", "CVE-2021-33910", "CVE-2021-3516", "CVE-2021-3517", "CVE-2021-3518", "CVE-2021-3520", "CVE-2021-3537", "CVE-2021-3541", "CVE-2021-3560"], "modified": "2021-08-10T17:16:44", "id": "RHSA-2021:3119", "href": "https://access.redhat.com/errata/RHSA-2021:3119", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-25T20:35:20", "description": "Red Hat Advanced Cluster Management for Kubernetes 2.3.0 images\n\nRed Hat Advanced Cluster Management for Kubernetes provides the\ncapabilities to address common challenges that administrators and site\nreliability engineers face as they work across a range of public and\nprivate cloud environments. Clusters and applications are all visible and\nmanaged from a single console\u2014with security policy built in.\n\nThis advisory contains the container images for Red Hat Advanced Cluster\nManagement for Kubernetes, which fix several bugs and security issues. See\nthe following Release Notes documentation, which will be updated shortly\nfor this release, for additional details about this release:\n\nhttps://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_mana\ngement_for_kubernetes/2.3/html/release_notes/\n\nSecurity:\n\n* fastify-reply-from: crafted URL allows prefix scape of the proxied backend service (CVE-2021-21321)\n\n* fastify-http-proxy: crafted URL allows prefix scape of the proxied\nbackend service (CVE-2021-21322)\n\n* nodejs-netmask: improper input validation of octal input data (CVE-2021-28918)\n\n* redis: Integer overflow via STRALGO LCS command (CVE-2021-29477)\n\n* redis: Integer overflow via COPY command for large intsets (CVE-2021-29478)\n\n* nodejs-glob-parent: Regular expression denial of service (CVE-2020-28469)\n\n* nodejs-lodash: ReDoS via the toNumber, trim and trimEnd functions\n(CVE-2020-28500)\n\n* golang.org/x/text: Panic in language.ParseAcceptLanguage while parsing -u- extension (CVE-2020-28851)\n\n* golang.org/x/text: Panic in language.ParseAcceptLanguage while processing\nbcp47 tag (CVE-2020-28852)\n\n* nodejs-ansi_up: XSS due to insufficient URL sanitization (CVE-2021-3377)\n\n* oras: zip-slip vulnerability via oras-pull (CVE-2021-21272)\n\n* redis: integer overflow when configurable limit for maximum supported bulk input size is too big on 32-bit platforms (CVE-2021-21309)\n\n* nodejs-lodash: command injection via template (CVE-2021-23337)\n\n* nodejs-hosted-git-info: Regular Expression denial of service via shortcutMatch in fromUrl() (CVE-2021-23362)\n\n* browserslist: parsing of invalid queries could result in Regular Expression Denial of Service (ReDoS) (CVE-2021-23364)\n\n* nodejs-postcss: Regular expression denial of service during source map parsing (CVE-2021-23368)\n\n* nodejs-handlebars: Remote code execution when compiling untrusted compile templates with strict:true option (CVE-2021-23369)\n\n* nodejs-postcss: ReDoS via getAnnotationURL() and loadAnnotation() in lib/previous-map.js (CVE-2021-23382)\n\n* nodejs-handlebars: Remote code execution when compiling untrusted compile templates with compat:true option (CVE-2021-23383)\n\n* openssl: integer overflow in CipherUpdate (CVE-2021-23840)\n\n* openssl: NULL pointer dereference in X509_issuer_and_serial_hash()\n(CVE-2021-23841)\n\n* nodejs-ua-parser-js: ReDoS via malicious User-Agent header (CVE-2021-27292)\n\n* grafana: snapshot feature allow an unauthenticated remote attacker to trigger a DoS via a remote API call (CVE-2021-27358)\n\n* nodejs-is-svg: ReDoS via malicious string (CVE-2021-28092)\n\n* nodejs-netmask: incorrectly parses an IP address that has octal integer with invalid character (CVE-2021-29418)\n\n* ulikunitz/xz: Infinite loop in readUvarint allows for denial of service (CVE-2021-29482)\n\n* normalize-url: ReDoS for data URLs (CVE-2021-33502)\n\n* nodejs-trim-newlines: ReDoS in .end() method (CVE-2021-33623)\n\n* nodejs-path-parse: ReDoS via splitDeviceRe, 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'rhel-8-for-s390x-baseos-eus-source-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-aus-debug-rpms',\n 'rhel-8-for-x86_64-baseos-aus-rpms',\n 'rhel-8-for-x86_64-baseos-aus-source-rpms',\n 'rhel-8-for-x86_64-baseos-e4s-debug-rpms',\n 'rhel-8-for-x86_64-baseos-e4s-rpms',\n 'rhel-8-for-x86_64-baseos-e4s-source-rpms',\n 'rhel-8-for-x86_64-baseos-eus-debug-rpms',\n 'rhel-8-for-x86_64-baseos-eus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-eus-rpms',\n 'rhel-8-for-x86_64-baseos-eus-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-eus-source-rpms',\n 'rhel-8-for-x86_64-baseos-eus-source-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-tus-debug-rpms',\n 'rhel-8-for-x86_64-baseos-tus-rpms',\n 'rhel-8-for-x86_64-baseos-tus-source-rpms'\n ],\n 'rhel_eus_8_4_crb': [\n 'codeready-builder-for-rhel-8-aarch64-eus-debug-rpms',\n 'codeready-builder-for-rhel-8-aarch64-eus-debug-rpms__8_DOT_4',\n 'codeready-builder-for-rhel-8-aarch64-eus-rpms',\n 'codeready-builder-for-rhel-8-aarch64-eus-rpms__8_DOT_4',\n 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'rhel-8-for-aarch64-highavailability-eus-rpms',\n 'rhel-8-for-aarch64-highavailability-eus-rpms__8_DOT_4',\n 'rhel-8-for-aarch64-highavailability-eus-source-rpms',\n 'rhel-8-for-aarch64-highavailability-eus-source-rpms__8_DOT_4',\n 'rhel-8-for-s390x-highavailability-eus-debug-rpms',\n 'rhel-8-for-s390x-highavailability-eus-debug-rpms__8_DOT_4',\n 'rhel-8-for-s390x-highavailability-eus-rpms',\n 'rhel-8-for-s390x-highavailability-eus-rpms__8_DOT_4',\n 'rhel-8-for-s390x-highavailability-eus-source-rpms',\n 'rhel-8-for-s390x-highavailability-eus-source-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-highavailability-e4s-debug-rpms',\n 'rhel-8-for-x86_64-highavailability-e4s-rpms',\n 'rhel-8-for-x86_64-highavailability-e4s-source-rpms',\n 'rhel-8-for-x86_64-highavailability-eus-debug-rpms',\n 'rhel-8-for-x86_64-highavailability-eus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-highavailability-eus-rpms',\n 'rhel-8-for-x86_64-highavailability-eus-rpms__8_DOT_4',\n 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'rhel-8-for-x86_64-resilientstorage-eus-source-rpms__8_DOT_4'\n ],\n 'rhel_eus_8_4_sap': [\n 'rhel-8-for-s390x-sap-netweaver-eus-debug-rpms',\n 'rhel-8-for-s390x-sap-netweaver-eus-debug-rpms__8_DOT_4',\n 'rhel-8-for-s390x-sap-netweaver-eus-rpms',\n 'rhel-8-for-s390x-sap-netweaver-eus-rpms__8_DOT_4',\n 'rhel-8-for-s390x-sap-netweaver-eus-source-rpms',\n 'rhel-8-for-s390x-sap-netweaver-eus-source-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-sap-netweaver-e4s-debug-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-e4s-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-e4s-source-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-eus-debug-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-eus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-sap-netweaver-eus-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-eus-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-sap-netweaver-eus-source-rpms',\n 'rhel-8-for-x86_64-sap-netweaver-eus-source-rpms__8_DOT_4'\n ],\n 'rhel_eus_8_4_sap_hana': [\n 'rhel-8-for-x86_64-sap-solutions-e4s-debug-rpms',\n 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'rhel-8-for-x86_64-supplementary-eus-source-rpms',\n 'rhel-8-for-x86_64-supplementary-eus-source-rpms__8_DOT_4'\n ],\n 'rhel_extras_nfv_8': [\n 'rhel-8-for-x86_64-nfv-debug-rpms',\n 'rhel-8-for-x86_64-nfv-rpms',\n 'rhel-8-for-x86_64-nfv-source-rpms',\n 'rhel-8-for-x86_64-nfv-tus-debug-rpms',\n 'rhel-8-for-x86_64-nfv-tus-rpms',\n 'rhel-8-for-x86_64-nfv-tus-source-rpms'\n ],\n 'rhel_extras_rt_8': [\n 'rhel-8-for-x86_64-nfv-debug-rpms',\n 'rhel-8-for-x86_64-nfv-rpms',\n 'rhel-8-for-x86_64-nfv-source-rpms',\n 'rhel-8-for-x86_64-rt-debug-rpms',\n 'rhel-8-for-x86_64-rt-rpms',\n 'rhel-8-for-x86_64-rt-source-rpms',\n 'rhel-8-for-x86_64-rt-tus-debug-rpms',\n 'rhel-8-for-x86_64-rt-tus-rpms',\n 'rhel-8-for-x86_64-rt-tus-source-rpms'\n ],\n 'rhel_tus_8_4_appstream': [\n 'rhel-8-for-x86_64-appstream-tus-debug-rpms',\n 'rhel-8-for-x86_64-appstream-tus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-appstream-tus-rpms',\n 'rhel-8-for-x86_64-appstream-tus-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-appstream-tus-source-rpms',\n 'rhel-8-for-x86_64-appstream-tus-source-rpms__8_DOT_4'\n ],\n 'rhel_tus_8_4_baseos': [\n 'rhel-8-for-x86_64-baseos-tus-debug-rpms',\n 'rhel-8-for-x86_64-baseos-tus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-tus-rpms',\n 'rhel-8-for-x86_64-baseos-tus-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-baseos-tus-source-rpms',\n 'rhel-8-for-x86_64-baseos-tus-source-rpms__8_DOT_4'\n ],\n 'rhel_tus_8_4_highavailability': [\n 'rhel-8-for-x86_64-highavailability-tus-debug-rpms',\n 'rhel-8-for-x86_64-highavailability-tus-debug-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-highavailability-tus-rpms',\n 'rhel-8-for-x86_64-highavailability-tus-rpms__8_DOT_4',\n 'rhel-8-for-x86_64-highavailability-tus-source-rpms',\n 'rhel-8-for-x86_64-highavailability-tus-source-rpms__8_DOT_4'\n ]\n};\n\nrepo_sets = rhel_get_valid_repo_sets(repositories:repositories);\nenterprise_linux_flag = rhel_repo_sets_has_enterprise_linux(repo_sets:repo_sets);\nif(repo_sets == RHEL_REPOS_NO_OVERLAP_MESSAGE) audit(AUDIT_PACKAGE_LIST_MISSING, RHEL_REPO_AUDIT_PACKAGE_LIST_DETAILS);\n\npkgs = [\n {'reference':'systemd-239-45.el8_4.2', 'sp':'4', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'repo_list':['enterprise_linux_8_appstream', 'enterprise_linux_8_baseos', 'enterprise_linux_8_crb', 'enterprise_linux_8_highavailability', 'enterprise_linux_8_nfv', 'enterprise_linux_8_realtime', 'enterprise_linux_8_resilientstorage', 'enterprise_linux_8_sap', 'enterprise_linux_8_sap_hana', 'enterprise_linux_8_supplementary', 'rhel_aus_8_4_appstream', 'rhel_aus_8_4_baseos', 'rhel_e4s_8_4_appstream', 'rhel_e4s_8_4_baseos', 'rhel_e4s_8_4_highavailability', 'rhel_e4s_8_4_sap', 'rhel_e4s_8_4_sap_hana', 'rhel_eus_8_4_appstream', 'rhel_eus_8_4_baseos', 'rhel_eus_8_4_crb', 'rhel_eus_8_4_highavailability', 'rhel_eus_8_4_resilientstorage', 'rhel_eus_8_4_sap', 'rhel_eus_8_4_sap_hana', 'rhel_eus_8_4_supplementary', 'rhel_extras_nfv_8', 'rhel_extras_rt_8', 'rhel_tus_8_4_appstream', 'rhel_tus_8_4_baseos', 'rhel_tus_8_4_highavailability']},\n {'reference':'systemd-239-45.el8_4.2', 'sp':'4', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'repo_list':['enterprise_linux_8_appstream', 'enterprise_linux_8_baseos', 'enterprise_linux_8_crb', 'enterprise_linux_8_highavailability', 'enterprise_linux_8_nfv', 'enterprise_linux_8_realtime', 'enterprise_linux_8_resilientstorage', 'enterprise_linux_8_sap', 'enterprise_linux_8_sap_hana', 'enterprise_linux_8_supplementary', 'rhel_aus_8_4_appstream', 'rhel_aus_8_4_baseos', 'rhel_e4s_8_4_appstream', 'rhel_e4s_8_4_baseos', 'rhel_e4s_8_4_highavailability', 'rhel_e4s_8_4_sap', 'rhel_e4s_8_4_sap_hana', 'rhel_eus_8_4_appstream', 'rhel_eus_8_4_baseos', 'rhel_eus_8_4_crb', 'rhel_eus_8_4_highavailability', 'rhel_eus_8_4_resilientstorage', 'rhel_eus_8_4_sap', 'rhel_eus_8_4_sap_hana', 'rhel_eus_8_4_supplementary', 'rhel_extras_nfv_8', 'rhel_extras_rt_8', 'rhel_tus_8_4_appstream', 'rhel_tus_8_4_baseos', 'rhel_tus_8_4_highavailability']},\n {'reference':'systemd-239-45.el8_4.2', 'sp':'4', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'repo_list':['enterprise_linux_8_appstream', 'enterprise_linux_8_baseos', 'enterprise_linux_8_crb', 'enterprise_linux_8_highavailability', 'enterprise_linux_8_nfv', 'enterprise_linux_8_realtime', 'enterprise_linux_8_resilientstorage', 'enterprise_linux_8_sap', 'enterprise_linux_8_sap_hana', 'enterprise_linux_8_supplementary', 'rhel_aus_8_4_appstream', 'rhel_aus_8_4_baseos', 'rhel_e4s_8_4_appstream', 'rhel_e4s_8_4_baseos', 'rhel_e4s_8_4_highavailability', 'rhel_e4s_8_4_sap', 'rhel_e4s_8_4_sap_hana', 'rhel_eus_8_4_appstream', 'rhel_eus_8_4_baseos', 'rhel_eus_8_4_crb', 'rhel_eus_8_4_highavailability', 'rhel_eus_8_4_resilientstorage', 'rhel_eus_8_4_sap', 'rhel_eus_8_4_sap_hana', 'rhel_eus_8_4_supplementary', 'rhel_extras_nfv_8', 'rhel_extras_rt_8', 'rhel_tus_8_4_appstream', 'rhel_tus_8_4_baseos', 'rhel_tus_8_4_highavailability']},\n {'reference':'systemd-239-45.el8_4.2', 'sp':'4', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'repo_list':['enterprise_linux_8_appstream', 'enterprise_linux_8_baseos', 'enterprise_linux_8_crb', 'enterprise_linux_8_highavailability', 'enterprise_linux_8_nfv', 'enterprise_linux_8_realtime', 'enterprise_linux_8_resilientstorage', 'enterprise_linux_8_sap', 'enterprise_linux_8_sap_hana', 'enterprise_linux_8_supplementary', 'rhel_aus_8_4_appstream', 'rhel_aus_8_4_baseos', 'rhel_e4s_8_4_appstream', 'rhel_e4s_8_4_baseos', 'rhel_e4s_8_4_highavailability', 'rhel_e4s_8_4_sap', 'rhel_e4s_8_4_sap_hana', 'rhel_eus_8_4_appstream', 'rhel_eus_8_4_baseos', 'rhel_eus_8_4_crb', 'rhel_eus_8_4_highavailability', 'rhel_eus_8_4_resilientstorage', 'rhel_eus_8_4_sap', 'rhel_eus_8_4_sap_hana', 'rhel_eus_8_4_supplementary', 'rhel_extras_nfv_8', 'rhel_extras_rt_8', 'rhel_tus_8_4_appstream', 'rhel_tus_8_4_baseos', 'rhel_tus_8_4_highavailability']},\n {'reference':'systemd-container-239-45.el8_4.2', 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{'reference':'systemd-sysvinit-246.13-7.8.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sle-module-basesystem-release-15.3'},\n {'reference':'systemd-sysvinit-246.13-7.8.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sle-module-basesystem-release-15.3'},\n {'reference':'udev-246.13-7.8.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sle-module-basesystem-release-15.3'},\n {'reference':'udev-246.13-7.8.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sle-module-basesystem-release-15.3'}\n];\n\nvar ltss_caveat_required = FALSE;\nvar flag = 0;\nforeach package_array ( pkgs ) {\n var reference = NULL;\n var release = NULL;\n var sp = NULL;\n var cpu = NULL;\n var exists_check = NULL;\n var rpm_spec_vers_cmp = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if (!empty_or_null(package_array['release'])) release = package_array['release'];\n if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];\n if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];\n if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];\n if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];\n if (reference && release) {\n if (exists_check) {\n if (!rpm_exists(release:release, rpm:exists_check)) continue;\n if ('ltss' >< tolower(exists_check)) ltss_caveat_required = TRUE;\n }\n if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libsystemd0 / libsystemd0-32bit / libudev-devel / libudev1 / etc');\n}\n", "cvss": {"score": 5, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "almalinux": [{"lastseen": "2021-08-11T15:48:38", "description": "The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.\n\nSecurity Fix(es):\n\n* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-07-20T19:58:30", "type": "almalinux", "title": "Important: systemd security update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-08-11T08:41:45", "id": "ALSA-2021:2717", "href": "https://errata.almalinux.org/8/ALSA-2021-2717.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "debian": [{"lastseen": "2021-08-29T22:32:28", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2715-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Salvatore Bonaccorso\nJuly 20, 2021 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : systemd\nVersion : 232-25+deb9u13\nCVE ID : CVE-2021-33910\n\nThe Qualys Research Labs discovered that an attacker-controlled\nallocation using the alloca() function could result in memory\ncorruption, allowing to crash systemd and hence the entire operating\nsystem.\n\nDetails can be found in the Qualys advisory at\nhttps://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt\n\nFor Debian 9 stretch, this problem has been fixed in version\n232-25+deb9u13.\n\nWe recommend that you upgrade your systemd packages.\n\nFor the detailed security status of systemd please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/systemd\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS\n", "edition": 6, "cvss3": {}, "published": "2021-07-20T16:51:41", "title": "[SECURITY] [DLA 2715-1] systemd security update", "type": "debian", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-20T16:51:41", "id": "DEBIAN:DLA-2715-1:A812E", "href": "https://lists.debian.org/debian-lts-announce/2021/debian-lts-announce-202107/msg00013.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-08-29T22:19:16", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4942-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nJuly 20, 2021 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : systemd\nCVE ID : CVE-2021-33910\n\nThe Qualys Research Labs discovered that an attacker-controlled\nallocation using the alloca() function could result in memory\ncorruption, allowing to crash systemd and hence the entire operating\nsystem.\n\nDetails can be found in the Qualys advisory at\nhttps://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt\n\nFor the stable distribution (buster), this problem has been fixed in\nversion 241-7~deb10u8.\n\nWe recommend that you upgrade your systemd packages.\n\nFor the detailed security status of systemd please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/systemd\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n", "edition": 6, "cvss3": {}, "published": "2021-07-20T13:09:11", "title": "[SECURITY] [DSA 4942-1] systemd security update", "type": "debian", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-20T13:09:11", "id": "DEBIAN:DSA-4942-1:E9C51", "href": "https://lists.debian.org/debian-security-announce/debian-security-announce-2021/msg00125.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "oraclelinux": [{"lastseen": "2021-07-30T08:25:41", "description": "[239-45.0.2]\n- Disable unprivileged BPF by default [Orabug: 32870980]\n- backport upstream pstore tmpfiles patch [Orabug: 31420486]\n- udev rules: fix memory hot add and remove [Orabug: 31310273]\n- fix to enable systemd-pstore.service [Orabug: 30951066]\n- journal: change support URL shown in the catalog entries [Orabug: 30853009]\n- fix to generate systemd-pstore.service file [Orabug: 30230056]\n- fix _netdev is missing for iscsi entry in /etc/fstab (tony.l.lam@oracle.com) [Orabug: 25897792]\n- set 'RemoveIPC=no' in logind.conf as default for OL7.2 [Orabug: 22224874]\n- allow dm remove ioctl to co-operate with UEK3 (Vaughan Cao) [Orabug: 18467469]\n- add hv dynamic memory support (Jerry Snitselaar) [Orabug: 18621475]\n- Backport upstream patches for the new systemd-pstore tool (Eric DeVolder) [OraBug: 30230056]\n[239-45.2]\n- basic/unit-name: do not use strdupa() on a path (CVE-2021-33910, #1974699)", "cvss3": {}, "published": "2021-07-21T00:00:00", "type": "oraclelinux", "title": "systemd security update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-21T00:00:00", "id": "ELSA-2021-2717", "href": "http://linux.oracle.com/errata/ELSA-2021-2717.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "fedora": [{"lastseen": "2021-07-30T08:42:34", "description": "systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. systemd supports SysV and LSB init scripts and works as a replacement for sysvinit. Other parts of this package are a logging daemon, utilities to control basic system configuration like the hostname, date, locale, maintain a list of logged-in users, system accounts, runtime directories and settings, and daemons to manage simple network configuration, network time synchronization, log forwarding, and name resolution. This package was built from the 248.5-stable branch of systemd. ", "cvss3": {}, "published": "2021-07-22T01:15:36", "type": "fedora", "title": "[SECURITY] Fedora 34 Update: systemd-248.5-1.fc34", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-22T01:15:36", "id": "FEDORA:89B4B324F700", "href": "", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-07-30T08:42:34", "description": "systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. systemd supports SysV and LSB init scripts and works as a replacement for sysvinit. Other parts of this package are a logging daemon, utilities to control basic system configuration like the hostname, date, locale, maintain a list of logged-in users, system accounts, runtime directories and settings, and daemons to manage simple network configuration, network time synchronization, log forwarding, and name resolution. This package was built from the 246.15-stable branch of systemd. ", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-07-24T01:08:44", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: systemd-246.15-1.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-13529", "CVE-2021-33910"], "modified": "2021-07-24T01:08:44", "id": "FEDORA:876413072EA9", "href": "", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "archlinux": [{"lastseen": "2021-07-30T08:39:08", "description": "Arch Linux Security Advisory ASA-202107-57\n==========================================\n\nSeverity: Medium\nDate : 2021-07-21\nCVE-ID : CVE-2021-33910\nPackage : systemd\nType : denial of service\nRemote : No\nLink : https://security.archlinux.org/AVG-2179\n\nSummary\n=======\n\nThe package systemd before version 249.1-1 is vulnerable to denial of\nservice.\n\nResolution\n==========\n\nUpgrade to 249.1-1.\n\n# pacman -Syu \"systemd>=249.1-1\"\n\nThe problem has been fixed upstream in version 249.1.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nA denial of service security issue has been found in systemd before\nversion 249.1. A local attacker who is able to mount a filesystem with\na very long path can crash systemd and the whole system through an\nattacker-controlled alloca().\n\nImpact\n======\n\nA local unprivileged attacker who is able to mount a filesystem with a\nvery long path can crash systemd and therefore the whole system.\n\nReferences\n==========\n\nhttps://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt\nhttps://www.qualys.com/2021/07/20/cve-2021-33910/cve-2021-33910-crasher.c\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1970887\nhttps://github.com/systemd/systemd/pull/20256\nhttps://github.com/systemd/systemd/commit/441e0115646d54f080e5c3bb0ba477c892861ab9\nhttps://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136ce\nhttps://security.archlinux.org/CVE-2021-33910", "cvss3": {}, "published": "2021-07-21T00:00:00", "type": "archlinux", "title": "[ASA-202107-57] systemd: denial of service", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-21T00:00:00", "id": "ASA-202107-57", "href": "https://security.archlinux.org/ASA-202107-57", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "suse": [{"lastseen": "2021-09-18T12:26:09", "description": "An update that solves one vulnerability and has one errata\n is now available.\n\nDescription:\n\n This update for systemd fixes the following issues:\n\n - CVE-2021-33910: Fixed a denial of service in systemd via\n unit_name_path_escape() (bsc#1188063)\n - Skip udev rules if 'elevator=' is used (bsc#1184994)\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-1082=1", "cvss3": {}, "published": "2021-07-24T02:17:30", "type": "suse", "title": "Security update for systemd (moderate)", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-24T02:17:30", "id": "OPENSUSE-SU-2021:1082-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/AAGPKC3S3ZQN25VD5T76IP4JJFCIWE4R/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-09-18T12:26:09", "description": "An update that solves one vulnerability and has one errata\n is now available.\n\nDescription:\n\n This update for systemd fixes the following issues:\n\n - CVE-2021-33910: Fixed a denial of service in systemd via\n unit_name_path_escape() (bsc#1188063)\n - Skip udev rules if 'elevator=' is used (bsc#1184994)\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2021-2404=1", "cvss3": {}, "published": "2021-07-20T17:31:32", "type": "suse", "title": "Security update for systemd (moderate)", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-20T17:31:32", "id": "OPENSUSE-SU-2021:2404-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/QZX3NUVJOV7AC5ZERG2JQFSEIIX6QJXR/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-09-18T12:26:09", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for systemd fixes the following issues:\n\n - CVE-2021-33910: Fixed a denial of service (stack exhaustion) in systemd\n (PID 1) (bsc#1188063)\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2021-2410=1", "cvss3": {}, "published": "2021-07-20T17:24:25", "type": "suse", "title": "Security update for systemd (important)", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-33910"], "modified": "2021-07-20T17:24:25", "id": "OPENSUSE-SU-2021:2410-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/IPIXUFHECPYFYLXDFG3MHBODZD7H7P2I/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-09-18T12:25:38", "description": "An update that solves two vulnerabilities and has three\n fixes is now available.\n\nDescription:\n\n This update for systemd fixes the following issues:\n\n - Updated to version 246.15\n - CVE-2021-33910: Fixed a denial of service issue in systemd. (bsc#1188063)\n - CVE-2020-13529: Fixed an issue that allows crafted DHCP FORCERENEW\n packet can cause a server running the DHCP client to be vulnerable to a\n DHCP ACK spoofing attack. (bsc#1185972)\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2021-2809=1", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-08-23T14:23:02", "type": "suse", "title": "Security update for systemd (moderate)", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-13529", "CVE-2021-33910"], "modified": "2021-08-23T14:23:02", "id": "OPENSUSE-SU-2021:2809-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/PFXYBJHAFZNV57EZ4VL2LC446RMO7HVT/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "gentoo": [{"lastseen": "2021-07-20T20:32:57", "description": "### Background\n\nA system and service manager.\n\n### Description\n\nMultiple vulnerabilities have been discovered in systemd. Please review the CVE identifiers referenced below for details. \n\n### Impact\n\nPlease review the referenced CVE identifiers for details.\n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll systemd users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=sys-apps/systemd-248.5\"", "edition": 2, "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-07-20T00:00:00", "title": "systemd: Multiple vulnerabilities", "type": "gentoo", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33910", "CVE-2020-13529"], "modified": "2021-07-20T00:00:00", "id": "GLSA-202107-48", "href": "https://security.gentoo.org/glsa/202107-48", "cvss": {"score": 2.9, "vector": "AV:A/AC:M/Au:N/C:N/I:N/A:P"}}], "cloudfoundry": [{"lastseen": "2021-09-08T07:37:48", "description": "## Severity\n\nHigh\n\n## Vendor\n\nCanonical Ubuntu\n\n## Versions Affected\n\n * Canonical Ubuntu 18.04\n\n## Description\n\nIt was discovered that systemd incorrectly handled certain mount paths. A local attacker could possibly use this issue to cause systemd to crash, resulting in a denial of service. (CVE-2021-33910)\n\nMitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW packets. A remote attacker could possibly use this issue to reconfigure servers. (CVE-2020-13529)\n\nCVEs contained in this USN include: CVE-2020-13529, CVE-2021-33910.\n\n## Affected Cloud Foundry Products and Versions\n\n_Severity is high unless otherwise noted._\n\n * Bionic Stemcells \n * 1.x versions prior to 1.20\n * All other stemcells not listed.\n * cflinuxfs3 \n * All versions prior to 0.250.0\n * CF Deployment \n * All versions prior to 16.22.0\n\n## Mitigation\n\nUsers of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:\n\n * Bionic Stemcells \n * Upgrade 1.x versions to 1.20 or greater\n * All other stemcells should be upgraded to the latest version available on [bosh.io](<https://bosh.io/stemcells>).\n * cflinuxfs3 \n * Upgrade all versions to 0.250.0 or greater\n * CF Deployment \n * Upgrade all versions to 16.22.0 or greater\n\n## References\n\n * [USN Notice](<https://usn.ubuntu.com/5013-1/>)\n * [CVE-2020-13529](<https://people.canonical.com/~ubuntu-security/cve/CVE-2020-13529>)\n * [CVE-2021-33910](<https://people.canonical.com/~ubuntu-security/cve/CVE-2021-33910>)\n\n## History\n\n2021-09-03: Initial vulnerability report published.\n", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-09-07T00:00:00", "type": "cloudfoundry", "title": "USN-5013-1: systemd vulnerabilities | Cloud Foundry", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-13529", "CVE-2021-33910"], "modified": "2021-09-07T00:00:00", "id": "CFOUNDRY:EA2FC96380AC5696218F1535F35D2590", "href": "https://www.cloudfoundry.org/blog/usn-5013-1-systemd-vulnerabilities/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "ubuntu": [{"lastseen": "2021-09-17T21:43:04", "description": "USN-5013-1 fixed several vulnerabilities in systemd. This update provides \nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\nIt was discovered that systemd incorrectly handled certain mount paths. A \nlocal attacker could possibly use this issue to cause systemd to crash, \nresulting in a denial of service. ([CVE-2021-33910](/security/CVE-2021-33910))\n\nMitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW \npackets. A remote attacker could possibly use this issue to reconfigure \nservers. ([CVE-2020-13529](/security/CVE-2020-13529))\n\n", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-07-20T00:00:00", "type": "ubuntu", "title": "systemd vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-13529", "CVE-2021-33910"], "modified": "2021-07-20T00:00:00", "id": "USN-5013-2", "href": "https://ubuntu.com/security/notices/USN-5013-2", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-09-17T21:43:07", "description": "It was discovered that systemd incorrectly handled certain mount paths. A \nlocal attacker could possibly use this issue to cause systemd to crash, \nresulting in a denial of service. ([CVE-2021-33910](/security/CVE-2021-33910))\n\nMitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW \npackets. A remote attacker could possibly use this issue to reconfigure \nservers. ([CVE-2020-13529](/security/CVE-2020-13529))\n\n", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-07-20T00:00:00", "type": "ubuntu", "title": "systemd vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 5.5, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.9, "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-13529", "CVE-2021-33910"], "modified": "2021-07-20T00:00:00", "id": "USN-5013-1", "href": "https://ubuntu.com/security/notices/USN-5013-1", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "thn": [{"lastseen": "2021-07-22T04:33:21", "description": "[](<https://thehackernews.com/images/-KWMyudCGllM/YPe_4G7D-JI/AAAAAAAADRc/c15FBZB4zo8eKdZwApdLeq6oXzYkulE9QCLcBGAsYHQ/s0/windows-linux-hacking.jpg>)\n\nMicrosoft's Windows 10 and the upcoming Windows 11 versions have been found vulnerable to a new local privilege escalation vulnerability that permits users with low-level permissions access Windows system files, in turn, enabling them to unmask the operating system installation password and even decrypt private keys.\n\nThe vulnerability has been nicknamed \"SeriousSAM.\"\n\n\"Starting with Windows 10 build 1809, non-administrative users are granted access to SAM, SYSTEM, and SECURITY registry hive files,\" CERT Coordination Center (CERT/CC) said in a [vulnerability note](<https://kb.cert.org/vuls/id/506989>) published Monday. \"This can allow for local privilege escalation (LPE).\"\n\nThe operating system configuration files in question are as follows -\n\n * c:\\Windows\\System32\\config\\sam\n * c:\\Windows\\System32\\config\\system\n * c:\\Windows\\System32\\config\\security\n\nMicrosoft, which is tracking the vulnerability under the identifier [CVE-2021-36934](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36934>), acknowledged the issue, but has yet to roll out a patch, or provide a timeline for when the fix will be made available.\n\n[](<https://go.thn.li/1-free-728-9> \"Stack Overflow Teams\" )\n\n\"An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager ([SAM](<https://en.wikipedia.org/wiki/Security_Account_Manager>)) database,\" the Windows makers noted. \"An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\n\n[](<https://thehackernews.com/images/-RPXOmujuXrY/YPe-L2M8ZII/AAAAAAAADRU/oGSk56V9xQ8d1Mp_bb01h82y-PeBBrHbgCLcBGAsYHQ/s0/Windows-SAM.jpg>)\n\nSuccessful exploitation of the flaw, however, necessitates that the attacker already has a foothold and is in possession of the ability to execute code on the victim system. In the interim, the CERT/CC is recommending that users restrict access to sam, system, and security files and delete [VSS shadow copies](<https://docs.microsoft.com/en-us/windows-server/storage/file-server/volume-shadow-copy-service>) of the system drive.\n\nThe latest disclosure also marks the third publicly disclosed unpatched bug in Windows since the release of [Patch Tuesday updates](<https://thehackernews.com/2021/07/update-your-windows-pcs-to-patch-117.html>) on July 13. Besides CVE-2021-36934, two more [weaknesses](<https://thehackernews.com/2021/07/microsoft-warns-of-new-unpatched.html>) affecting the [Print Spooler](<https://thehackernews.com/2021/07/researcher-uncover-yet-another.html>) component have also been discovered, prompting Microsoft to urge all users to stop and disable the service to protect systems against exploitation.\n\n### Linux Distros Suffer from \"Sequoia\" Privilege Escalation Flaw\n\nIt's not just Windows. Remediations have been released for a security shortcoming affecting all [Linux kernel versions](<https://en.wikipedia.org/wiki/Linux_kernel_version_history>) from 2014 that can be exploited by malicious users and malware already deployed on a system to gain root-level privileges.\n\n[](<https://go.thn.li/auth_300> \"Enterprise Password Management\" )\n\nDubbed \"Sequoia\" by researchers from cybersecurity firm Qualys, the issue has been assigned the identifier [CVE-2021-33909](<https://blog.qualys.com/vulnerabilities-threat-research/2021/07/20/sequoia-a-local-privilege-escalation-vulnerability-in-linuxs-filesystem-layer-cve-2021-33909>) and affects default installations of Ubuntu 20.04, Ubuntu 20.10, Ubuntu 21.04, Debian 11, and Fedora 34 Workstation. Red Hat Enterprise Linux versions 6, 7, and 8 are also [affected](<https://access.redhat.com/security/vulnerabilities/RHSB-2021-006>) by the vulnerability.\n\nSpecifically, the flaw concerns a size_t-to-int type conversion vulnerability in the Linux Kernel's \"seq_file\" file system interface, permitting an unprivileged local attacker to create, mount, and delete a deep directory structure whose total path length exceeds 1GB, resulting in privilege escalation on the vulnerable host.\n\nSeparately, Qualys also disclosed a stack exhaustion denial-of-service vulnerability in [systemd](<https://en.wikipedia.org/wiki/Systemd>) ([CVE-2021-33910](<https://blog.qualys.com/vulnerabilities-threat-research/2021/07/20/cve-2021-33910-denial-of-service-stack-exhaustion-in-systemd-pid-1>)) that could be exploited by unprivileged attackers to crash the software suite and trigger a [kernel panic](<https://en.wikipedia.org/wiki/Kernel_panic>).\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {}, "published": "2021-07-21T06:37:00", "type": "thn", "title": "New Windows and Linux Flaws Give Attackers Highest System Privileges", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-33909", "CVE-2021-33910", "CVE-2021-36934"], "modified": "2021-07-22T03:36:46", "id": "THN:D45AECD2A3661A45A08377EAEF0B729F", "href": "https://thehackernews.com/2021/07/new-windows-and-linux-flaws-give.html", "cvss": {"score": 0.0, "vector": "NONE"}}], "packetstorm": [{"lastseen": "2021-07-21T17:28:49", "description": "", "cvss3": {}, "published": "2021-07-21T00:00:00", "type": "packetstorm", "title": "Sequoia: A Deep Root In Linux's Filesystem Layer", "bulletinFamily": "exploit", "cvss2": {}, "cvelist": ["CVE-2020-8835", "CVE-2021-33909", "CVE-2021-33910"], "modified": "2021-07-21T00:00:00", "id": "PACKETSTORM:163621", "href": "https://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html", "sourceData": "` \nQualys Security Advisory \n \nSequoia: A deep root in Linux's filesystem layer (CVE-2021-33909) \n \n \n======================================================================== \nContents \n======================================================================== \n \nSummary \nAnalysis \nExploitation overview \nExploitation details \nMitigations \nAcknowledgments \nTimeline \n \n \n======================================================================== \nSummary \n======================================================================== \n \nWe discovered a size_t-to-int conversion vulnerability in the Linux \nkernel's filesystem layer: by creating, mounting, and deleting a deep \ndirectory structure whose total path length exceeds 1GB, an unprivileged \nlocal attacker can write the 10-byte string \"//deleted\" to an offset of \nexactly -2GB-10B below the beginning of a vmalloc()ated kernel buffer. \n \nWe successfully exploited this uncontrolled out-of-bounds write, and \nobtained full root privileges on default installations of Ubuntu 20.04, \nUbuntu 20.10, Ubuntu 21.04, Debian 11, and Fedora 34 Workstation; other \nLinux distributions are certainly vulnerable, and probably exploitable. \nOur exploit requires approximately 5GB of memory and 1M inodes; we will \npublish it in the near future. A basic proof of concept (a crasher) is \nattached to this advisory and is available at: \n \nhttps://www.qualys.com/research/security-advisories/ \n \nTo the best of our knowledge, this vulnerability was introduced in July \n2014 (Linux 3.16) by commit 058504ed (\"fs/seq_file: fallback to vmalloc \nallocation\"). \n \n \n======================================================================== \nAnalysis \n======================================================================== \n \nThe Linux kernel's seq_file interface produces virtual files that \ncontain sequences of records (for example, many files in /proc are \nseq_files, and records are usually lines). Each record must fit into a \nseq_file buffer, which is therefore enlarged as needed, by doubling its \nsize at line 242 (seq_buf_alloc() is a simple wrapper around \nkvmalloc()): \n \n------------------------------------------------------------------------ \n168 ssize_t seq_read_iter(struct kiocb *iocb, struct iov_iter *iter) \n169 { \n170 struct seq_file *m = iocb->ki_filp->private_data; \n... \n205 /* grab buffer if we didn't have one */ \n206 if (!m->buf) { \n207 m->buf = seq_buf_alloc(m->size = PAGE_SIZE); \n... \n210 } \n... \n220 // get a non-empty record in the buffer \n... \n223 while (1) { \n... \n227 err = m->op->show(m, p); \n... \n236 if (!seq_has_overflowed(m)) // got it \n237 goto Fill; \n238 // need a bigger buffer \n... \n240 kvfree(m->buf); \n... \n242 m->buf = seq_buf_alloc(m->size <<= 1); \n... \n246 } \n------------------------------------------------------------------------ \n \nThis size multiplication is not a vulnerability in itself, because \nm->size is a size_t (an unsigned 64-bit integer, on x86_64), and the \nsystem would run out of memory long before this multiplication overflows \nthe integer m->size. \n \nUnfortunately, this size_t is also passed to functions whose size \nargument is an int (a signed 32-bit integer), not a size_t. For example, \nthe show_mountinfo() function (which is called at line 227 to format the \nrecords in /proc/self/mountinfo) calls seq_dentry() (at line 150), which \ncalls dentry_path() (at line 530), which calls prepend() (at line 387): \n \n------------------------------------------------------------------------ \n135 static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt) \n136 { \n... \n150 seq_dentry(m, mnt->mnt_root, \" \\t\\n\\\\\"); \n------------------------------------------------------------------------ \n523 int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc) \n524 { \n525 char *buf; \n526 size_t size = seq_get_buf(m, &buf); \n... \n529 if (size) { \n530 char *p = dentry_path(dentry, buf, size); \n------------------------------------------------------------------------ \n380 char *dentry_path(struct dentry *dentry, char *buf, int buflen) \n381 { \n382 char *p = NULL; \n... \n385 if (d_unlinked(dentry)) { \n386 p = buf + buflen; \n387 if (prepend(&p, &buflen, \"//deleted\", 10) != 0) \n------------------------------------------------------------------------ \n11 static int prepend(char **buffer, int *buflen, const char *str, int namelen) \n12 { \n13 *buflen -= namelen; \n14 if (*buflen < 0) \n15 return -ENAMETOOLONG; \n16 *buffer -= namelen; \n17 memcpy(*buffer, str, namelen); \n------------------------------------------------------------------------ \n \nAs a result, if an unprivileged local attacker creates, mounts, and \ndeletes a deep directory structure whose total path length exceeds 1GB, \nand if the attacker open()s and read()s /proc/self/mountinfo, then: \n \n- in seq_read_iter(), a 2GB buffer is vmalloc()ated (line 242), and \nshow_mountinfo() is called (line 227); \n \n- in show_mountinfo(), seq_dentry() is called with the empty 2GB buffer \n(line 150); \n \n- in seq_dentry(), dentry_path() is called with a 2GB size (line 530); \n \n- in dentry_path(), the int buflen is therefore negative (INT_MIN, \n-2GB), p points to an offset of -2GB below the vmalloc()ated buffer \n(line 386), and prepend() is called (line 387); \n \n- in prepend(), *buflen is decreased by 10 bytes and becomes a large but \npositive int (line 13), *buffer is decreased by 10 bytes and points to \nan offset of -2GB-10B below the vmalloc()ated buffer (line 16), and \nthe 10-byte string \"//deleted\" is written out of bounds (line 17). \n \n \n======================================================================== \nExploitation overview \n======================================================================== \n \n1/ We mkdir() a deep directory structure (roughly 1M nested directories) \nwhose total path length exceeds 1GB, we bind-mount it in an unprivileged \nuser namespace, and rmdir() it. \n \n2/ We create a thread that vmalloc()ates a small eBPF program (via \nBPF_PROG_LOAD), and we block this thread (via userfaultfd or FUSE) after \nour eBPF program has been validated by the kernel eBPF verifier but \nbefore it is JIT-compiled by the kernel. \n \n3/ We open() /proc/self/mountinfo in our unprivileged user namespace, \nand start read()ing the long path of our bind-mounted directory, thereby \nwriting the string \"//deleted\" to an offset of exactly -2GB-10B below \nthe beginning of a vmalloc()ated buffer. \n \n4/ We arrange for this \"//deleted\" string to overwrite an instruction of \nour validated eBPF program (and therefore nullify the security checks of \nthe kernel eBPF verifier), and transform this uncontrolled out-of-bounds \nwrite into an information disclosure, and into a limited but controlled \nout-of-bounds write. \n \n5/ We transform this limited out-of-bounds write into an arbitrary read \nand write of kernel memory, by reusing Manfred Paul's beautiful btf and \nmap_push_elem techniques from: \n \nhttps://www.thezdi.com/blog/2020/4/8/cve-2020-8835-linux-kernel-privilege-escalation-via-improper-ebpf-program-verification \n \n6/ We use this arbitrary read to locate the modprobe_path[] buffer in \nkernel memory, and use the arbitrary write to replace the contents of \nthis buffer (\"/sbin/modprobe\" by default) with a path to our own \nexecutable, thus obtaining full root privileges. \n \n \n======================================================================== \nExploitation details \n======================================================================== \n \na/ We create a directory whose total path length exceeds 1GB: in theory, \nwe need to create over 1GB/256B=4M nested directories (NAME_MAX is 255); \nin practice, show_mountinfo() replaces each '\\\\' character in our long \ndirectory with the 4-byte string \"\\\\134\", and we therefore need to \ncreate only 1M nested directories. \n \nb/ We fill all large vmalloc holes: we bind-mount (MS_BIND) various \nparts of our long directory in several unprivileged user namespaces and \nvmalloc()ate large seq_file buffers by read()ing /proc/self/mountinfo. \nFor example, we vmalloc()ate 768MB of large buffers in our exploit. \n \nc/ We vmalloc()ate two 1GB buffers and one 2GB buffer (by bind-mounting \nour long directory in three different user namespaces, and by read()ing \n/proc/self/mountinfo), and we check that \"//deleted\" is indeed written \nto an offset of -2GB-10B below the beginning of our 2GB buffer (i.e., \n8182B above the beginning of our first 1GB buffer -- the \"XXX\"s are \nguard pages): \n \n\"//deleted\" \n| \n4KB v 1GB 4KB 1GB 4KB 2GB \n-----|---|---+-------------|---|-----------------|---|-----------------| \n... |XXX| seq_file buffer |XXX| seq_file buffer |XXX| seq_file buffer | \n-----|---|---+-------------|---|-----------------|---|-----------------| \n| | | \n| \\----<----<----<----<----<----<----<----/ \n8182B -2GB-10B \n \nd/ We fill all small vmalloc holes: we vmalloc()ate various small socket \nbuffers by send()ing numerous NETLINK_USERSOCK messages. For example, we \nvmalloc()ate 256MB of small buffers in our exploit. \n \ne/ We create 1024 user-space threads; each thread starts loading an eBPF \nprogram into the kernel, but (via userfaultfd or FUSE) we block every \nthread in kernel space (at line 2101), before our eBPF programs are \nactually vmalloc()ated (at line 2162): \n \n------------------------------------------------------------------------ \n2076 static int bpf_prog_load(union bpf_attr *attr, union bpf_attr __user *uattr) \n2077 { \n.... \n2100 /* copy eBPF program license from user space */ \n2101 if (strncpy_from_user(license, u64_to_user_ptr(attr->license), \n.... \n2161 /* plain bpf_prog allocation */ \n2162 prog = bpf_prog_alloc(bpf_prog_size(attr->insn_cnt), GFP_USER); \n------------------------------------------------------------------------ \n \nf/ We vfree() our first 1GB seq_file buffer (where \"//deleted\" was \nwritten out of bounds), and we immediately unblock all 1024 threads; our \neBPF programs are vmalloc()ated into the 1GB hole that we just vfree()d: \n \n4KB 1GB 4KB 1GB 4KB 2GB \n-----|---|-----------------|---|-----------------|---|-----------------| \n... |XXX| eBPF programs |XXX| seq_file buffer |XXX| seq_file buffer | \n-----|---|-----------------|---|-----------------|---|-----------------| \n \ng/ Next, (again via userfaultfd or FUSE) we block one of our threads (at \nline 12795) after its eBPF program has been validated by the kernel eBPF \nverifier but before it is JIT-compiled by the kernel: \n \n------------------------------------------------------------------------ \n12640 int bpf_check(struct bpf_prog **prog, union bpf_attr *attr, \n12641 union bpf_attr __user *uattr) \n12642 { \n..... \n12795 print_verification_stats(env); \n------------------------------------------------------------------------ \n \nh/ Last, we overwrite an instruction of this eBPF program with an \nout-of-bounds \"//deleted\" string (again via our 2GB seq_file buffer), \nand therefore nullify the security checks of the kernel eBPF verifier: \n \n\"//deleted\" \n| \n4KB v 1GB 4KB 1GB 4KB 2GB \n-----|---|---+-------------|---|-----------------|---|-----------------| \n... |XXX| eBPF programs |XXX| seq_file buffer |XXX| seq_file buffer | \n-----|---|---+-------------|---|-----------------|---|-----------------| \n| | | \n| \\----<----<----<----<----<----<----<----/ \n8182B -2GB-10B \n \nFirst, we transform this uncontrolled eBPF-program corruption into an \ninformation disclosure. Our first, uncorrupted eBPF program is deemed \nsafe by the kernel eBPF verifier (\"storage\" and \"control\" are two basic \nBPF_MAP_TYPE_ARRAYs, readable and writable from user space via \nBPF_MAP_LOOKUP_ELEM and BPF_MAP_UPDATE_ELEM): \n \n- BPF_LD_IMM64_RAW(BPF_REG_2, BPF_PSEUDO_MAP_VALUE, storage) loads the \naddress of our storage map (which resides in kernel space and whose \naddress is unknown to us) into the eBPF register BPF_REG_2; \n \n- BPF_MOV64_IMM(BPF_REG_2, 0) immediately replaces the contents of \nBPF_REG_2 (the address of our storage map) with the constant value 0; \n \n- BPF_LD_IMM64_RAW(BPF_REG_3, BPF_PSEUDO_MAP_VALUE, control) loads the \naddress of our control map into BPF_REG_3; \n \n- BPF_STX_MEM(BPF_DW, BPF_REG_3, BPF_REG_2, 0) stores the contents of \nBPF_REG_2 (the constant value 0) into our control map. \n \nHowever, our eBPF-program corruption overwrites the instruction \nBPF_MOV64_IMM(BPF_REG_2, 0) with the 8-byte string \"deleted\", which \ntranslates into the instruction BPF_ALU32_IMM(BPF_LSH, BPF_REG_5, 0x74): \na NOP (\"no operation\"), because our program does not use BPF_REG_5. As a \nresult, we do not store the constant value 0 into our control map: \ninstead, we store and disclose the address of our storage map. \n \n(This information disclosure allowed us to greatly reduce the number of \nhardcoded kernel offsets in our exploit: our Ubuntu 20.04 exploit worked \nout of the box on Ubuntu 20.10, Ubuntu 21.04, Debian 11, and Fedora 34.) \n \nSecond, we transform our uncontrolled eBPF-program corruption into a \nlimited but controlled out-of-bounds write. Our second, uncorrupted eBPF \nprogram is also deemed safe by the kernel eBPF verifier (\"corrupt\" is a \n3*64KB BPF_MAP_TYPE_ARRAY): \n \n- BPF_LD_IMM64_RAW(BPF_REG_4, BPF_PSEUDO_MAP_VALUE, corrupt) loads the \naddress of our corrupt map into BPF_REG_4; \n \n- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 3*64KB/2) points BPF_REG_4 to the \nmiddle of our corrupt map; \n \n- BPF_ALU64_IMM(BPF_SUB, BPF_REG_4, 3*64KB/4) points BPF_REG_4 to the \nfirst quarter of our corrupt map; \n \n- BPF_LD_IMM64_RAW(BPF_REG_3, BPF_PSEUDO_MAP_VALUE, control) loads the \naddress of our control map into BPF_REG_3; \n \n- BPF_LDX_MEM(BPF_H, BPF_REG_7, BPF_REG_3, 0) loads a variable 16-bit \noffset from our control map into BPF_REG_7; \n \n- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_7) adds BPF_REG_7 (our \nvariable 16-bit offset) to BPF_REG_4, which therefore points safely \nwithin the bounds of our corrupt map (because BPF_REG_7 is in the \n[0,64KB] range). \n \nHowever, our eBPF-program corruption overwrites the instruction \nBPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 3*64KB/2) with the string \"deleted\", \nwhich translates into BPF_ALU32_IMM(BPF_LSH, BPF_REG_5, 0x74) (a NOP). \nAs a result, the following BPF_ALU64_IMM(BPF_SUB, BPF_REG_4, 3*64KB/4) \npoints BPF_REG_4 out of bounds and allows us to read from and write to \nthe struct bpf_map that precedes our corrupt map in kernel space. \n \nFinally, we transform this limited out-of-bounds read and write into an \narbitrary read and write of kernel memory, by reusing Manfred Paul's btf \nand map_push_elem techniques: \n \n- With the arbitrary kernel read we locate the symbol \"__request_module\" \nand hence the function __request_module(), disassemble this function, \nand extract the address of modprobe_path[] from the instructions for \n\"if (!modprobe_path[0])\". \n \n- With the arbitrary kernel write we overwrite the contents of \nmodprobe_path[] (\"/sbin/modprobe\" by default) with a path to our own \nexecutable, and call request_module() (by creating a netlink socket), \nwhich executes modprobe_path, and hence our own executable, as root. \n \n \n======================================================================== \nMitigations \n======================================================================== \n \nImportant note: the following mitigations prevent only our specific \nexploit from working (but other exploitation techniques may exist); to \ncompletely fix this vulnerability, the kernel must be patched. \n \n- Set /proc/sys/kernel/unprivileged_userns_clone to 0, to prevent an \nattacker from mounting a long directory in a user namespace. However, \nthe attacker may mount a long directory via FUSE instead; we have not \nfully explored this possibility, because we accidentally stumbled upon \nCVE-2021-33910 in systemd: if an attacker FUSE-mounts a long directory \n(longer than 8MB), then systemd exhausts its stack, crashes, and \ntherefore crashes the entire operating system (a kernel panic). \n \n- Set /proc/sys/kernel/unprivileged_bpf_disabled to 1, to prevent an \nattacker from loading an eBPF program into the kernel. However, the \nattacker may corrupt other vmalloc()ated objects instead (for example, \nthread stacks), but we have not investigated this possibility. \n \n \n======================================================================== \nAcknowledgments \n======================================================================== \n \nWe thank the PaX Team for answering our many questions about the Linux \nkernel. We also thank Manfred Paul, Jann Horn, Brandon Azad, Simon \nScannell, and Bruce Leidl for their exploits and write-ups: \n \nhttps://www.thezdi.com/blog/2020/4/8/cve-2020-8835-linux-kernel-privilege-escalation-via-improper-ebpf-program-verification \nhttps://googleprojectzero.blogspot.com/2016/06/exploiting-recursion-in-linux-kernel_20.html \nhttps://googleprojectzero.blogspot.com/2020/12/an-ios-hacker-tries-android.html \nhttps://scannell.io/posts/ebpf-fuzzing/ \nhttps://github.com/brl/grlh \n \nWe thank Red Hat Product Security and the members of \nlinux-distros@openwall and security@kernel for their work on this \ncoordinated disclosure. We also thank Mitre's CVE Assignment Team. \nFinally, we thank Marco Ivaldi for his continued support. \n \n \n======================================================================== \nTimeline \n======================================================================== \n \n2021-06-09: We sent our advisories for CVE-2021-33909 and CVE-2021-33910 \nto Red Hat Product Security (the two vulnerabilities are closely related \nand the systemd-security mailing list is hosted by Red Hat). \n \n2021-07-06: We sent our advisories, and Red Hat sent the patches they \nwrote, to the linux-distros@openwall mailing list. \n \n2021-07-13: We sent our advisory for CVE-2021-33909, and Red Hat sent \nthe patch they wrote, to the security@kernel mailing list. \n \n2021-07-20: Coordinated Release Date (12:00 PM UTC). \n \n \n`\n", "sourceHref": "https://packetstormsecurity.com/files/download/163621/sequoia-local-privilege-escalation-linux.txt", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}]}
