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{"id": "DEBIANCVE:CVE-2022-0382", "vendorId": null, "type": "debiancve", "bulletinFamily": "info", "title": "CVE-2022-0382", "description": "An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1.", "published": "2022-02-11T18:15:00", "modified": "2022-02-11T18:15:00", "epss": [{"cve": "CVE-2022-0382", "epss": 0.00042, "percentile": 0.05682, "modified": "2023-06-19"}], "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1}, "severity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM"}, "exploitabilityScore": 1.8, "impactScore": 3.6}, "href": "https://security-tracker.debian.org/tracker/CVE-2022-0382", "reporter": "Debian Security Bug Tracker", "references": [], "cvelist": ["CVE-2022-0382"], "immutableFields": [], "lastseen": "2023-06-19T15:22:42", "viewCount": 16, "enchantments": {"dependencies": {"references": [{"type": "cnvd", "idList": ["CNVD-2022-14701"]}, {"type": "cve", "idList": ["CVE-2022-0382"]}, {"type": "nessus", "idList": ["UBUNTU_USN-5278-1.NASL", "UBUNTU_USN-5337-1.NASL", "UBUNTU_USN-5368-1.NASL"]}, {"type": "redhatcve", "idList": ["RH:CVE-2022-0382"]}, {"type": "ubuntu", "idList": ["USN-5278-1", "USN-5337-1", "USN-5368-1"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2022-0382"]}]}, "score": {"value": 2.8, "vector": "NONE"}, "backreferences": {"references": [{"type": "cve", "idList": ["CVE-2022-0382"]}, {"type": "nessus", "idList": ["UBUNTU_USN-5278-1.NASL"]}, {"type": "redhatcve", "idList": ["RH:CVE-2022-0382"]}, {"type": "ubuntu", "idList": ["USN-5278-1"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2022-0382"]}]}, "exploitation": null, "epss": [{"cve": "CVE-2022-0382", "epss": 0.00042, "percentile": 0.05656, "modified": "2023-05-02"}], "vulnersScore": 2.8}, "_state": {"dependencies": 1687190819, "score": 1687188540, "epss": 0}, "_internal": {"score_hash": "66854b4345689e19c7bd2e4ec770100e"}, "affectedPackage": [{"OS": "Debian", "OSVersion": "12", "arch": "all", "packageFilename": "linux_5.15.15-1_all.deb", "packageVersion": "5.15.15-1", "operator": "lt", "status": "resolved", "packageName": "linux"}, {"OS": "Debian", "OSVersion": "11", "arch": "all", "packageFilename": "linux_5.10.178-3_all.deb", "packageVersion": "5.10.178-3", "operator": "lt", "status": "resolved", "packageName": "linux"}, {"OS": "Debian", "OSVersion": "10", "arch": "all", "packageFilename": "linux_4.19.249-2_all.deb", "packageVersion": "4.19.249-2", "operator": "lt", "status": "resolved", "packageName": "linux"}, {"OS": "Debian", "OSVersion": "999", "arch": "all", "packageFilename": "linux_5.15.15-1_all.deb", "packageVersion": "5.15.15-1", "operator": "lt", "status": "resolved", "packageName": "linux"}]}

{"prion": [{"lastseen": "2023-08-15T15:15:05", "description": "An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-02-11T18:15:00", "type": "prion", "title": "CVE-2022-0382", "bulletinFamily": "NVD", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0382"], "modified": "2022-12-02T19:39:00", "id": "PRION:CVE-2022-0382", "href": "https://kb.prio-n.com/vulnerability/CVE-2022-0382", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "cve": [{"lastseen": "2023-06-19T14:29:39", "description": "An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-02-11T18:15:00", "type": "cve", "title": "CVE-2022-0382", "cwe": ["CWE-909"], "bulletinFamily": "NVD", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0382"], "modified": "2022-12-02T19:39:00", "cpe": ["cpe:/o:linux:linux_kernel:5.16.10"], "id": "CVE-2022-0382", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-0382", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}, "cpe23": ["cpe:2.3:o:linux:linux_kernel:5.16.10:*:*:*:*:*:*:*"]}], "cnvd": [{"lastseen": "2022-08-27T05:03:59", "description": "Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel is vulnerable to an information disclosure vulnerability that stems from sending TIPC datagrams to one or more destinations in the TIPC protocol subsystem of the Linux kernel due to uninitialized memory. A local attacker could exploit the vulnerability to read some kernel memory.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-02-15T00:00:00", "type": "cnvd", "title": "Linux kernel information disclosure vulnerability (CNVD-2022-14701)", "bulletinFamily": "cnvd", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0382"], "modified": "2022-02-25T00:00:00", "id": "CNVD-2022-14701", "href": "https://www.cnvd.org.cn/flaw/show/CNVD-2022-14701", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "redhatcve": [{"lastseen": "2023-06-19T15:14:43", "description": "An information leak flaw was found due to uninitialized memory in the Linux kernel\u2019s TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read.\n#### Mitigation\n\nTo mitigate this issue, prevent the module tipc from being loaded. Please see <https://access.redhat.com/solutions/41278> for information on how to blacklist a kernel module to prevent it from loading automatically. \n\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-01-26T17:37:47", "type": "redhatcve", "title": "CVE-2022-0382", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0382"], "modified": "2023-05-10T12:51:58", "id": "RH:CVE-2022-0382", "href": "https://access.redhat.com/security/cve/cve-2022-0382", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "ubuntucve": [{"lastseen": "2023-09-13T14:27:27", "description": "An information leak flaw was found due to uninitialized memory in the Linux\nkernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram\nto one or more destinations. This flaw allows a local user to read some\nkernel memory. This issue is limited to no more than 7 bytes, and the user\ncannot control what is read. This flaw affects the Linux kernel versions\nprior to 5.17-rc1.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-01-28T00:00:00", "type": "ubuntucve", "title": "CVE-2022-0382", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0382"], "modified": "2022-01-28T00:00:00", "id": "UB:CVE-2022-0382", "href": "https://ubuntu.com/security/CVE-2022-0382", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "ubuntu": [{"lastseen": "2023-08-06T23:34:06", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-oem-5.14 \\- Linux kernel for OEM systems\n\nIt was discovered that the rlimit tracking for user namespaces in the Linux \nkernel did not properly perform reference counting, leading to a use-after- \nfree vulnerability. A local attacker could use this to cause a denial of \nservice or possibly execute arbitrary code. (CVE-2022-24122)\n\nIt was discovered that the BPF verifier in the Linux kernel did not \nproperly restrict pointer types in certain situations. A local attacker \ncould use this to cause a denial of service (system crash) or possibly \nexecute arbitrary code. (CVE-2022-23222)\n\nJeremy Cline discovered a use-after-free in the nouveau graphics driver of \nthe Linux kernel during device removal. A privileged or physically \nproximate attacker could use this to cause a denial of service (system \ncrash). (CVE-2020-27820)\n\nIt was discovered that the Packet network protocol implementation in the \nLinux kernel contained a double-free vulnerability. A local attacker could \nuse this to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2021-22600)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen subsystem within the Linux kernel did \nnot adequately limit the number of events driver domains (unprivileged PV \nbackends) could send to other guest VMs. An attacker in a driver domain \ncould use this to cause a denial of service in other guest VMs. \n(CVE-2021-28713)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen network backend driver in the Linux \nkernel did not adequately limit the amount of queued packets when a guest \ndid not process them. An attacker in a guest VM can use this to cause a \ndenial of service (excessive kernel memory consumption) in the network \nbackend domain. (CVE-2021-28714, CVE-2021-28715)\n\nSzymon Heidrich discovered that the USB Gadget subsystem in the Linux \nkernel did not properly restrict the size of control requests for certain \ngadget types, leading to possible out of bounds reads or writes. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-39685)\n\nIt was discovered that the eBPF implementation in the Linux kernel \ncontained a race condition around read-only maps. A privileged attacker \ncould use this to modify read-only maps. (CVE-2021-4001)\n\nJann Horn discovered a race condition in the Unix domain socket \nimplementation in the Linux kernel that could result in a read-after-free. \nA local attacker could use this to cause a denial of service (system crash) \nor possibly execute arbitrary code. (CVE-2021-4083)\n\nIt was discovered that the simulated networking device driver for the Linux \nkernel did not properly initialize memory in certain situations. A local \nattacker could use this to expose sensitive information (kernel memory). \n(CVE-2021-4135)\n\nKirill Tkhai discovered that the XFS file system implementation in the \nLinux kernel did not calculate size correctly when pre-allocating space in \nsome situations. A local attacker could use this to expose sensitive \ninformation. (CVE-2021-4155)\n\nEric Biederman discovered that the cgroup process migration implementation \nin the Linux kernel did not perform permission checks correctly in some \nsituations. A local attacker could possibly use this to gain administrative \nprivileges. (CVE-2021-4197)\n\nBrendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device \ndriver in the Linux kernel did not properly validate meta-data coming from \nthe device. A local attacker who can control an emulated device can use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2021-43975)\n\nIt was discovered that the ARM Trusted Execution Environment (TEE) \nsubsystem in the Linux kernel contained a race condition leading to a use- \nafter-free vulnerability. A local attacker could use this to cause a denial \nof service or possibly execute arbitrary code. (CVE-2021-44733)\n\nIt was discovered that the Phone Network protocol (PhoNet) implementation \nin the Linux kernel did not properly perform reference counting in some \nerror conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45095)\n\nIt was discovered that the Reliable Datagram Sockets (RDS) protocol \nimplementation in the Linux kernel did not properly deallocate memory in \nsome error conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45480)\n\nIt was discovered that the BPF subsystem in the Linux kernel did not \nproperly track pointer types on atomic fetch operations in some situations. \nA local attacker could use this to expose sensitive information (kernel \npointer addresses). (CVE-2022-0264)\n\nSushma Venkatesh Reddy discovered that the Intel i915 graphics driver in \nthe Linux kernel did not perform a GPU TLB flush in some situations. A \nlocal attacker could use this to cause a denial of service or possibly \nexecute arbitrary code. (CVE-2022-0330)\n\nIt was discovered that the TIPC Protocol implementation in the Linux kernel \ndid not properly initialize memory in some situations. A local attacker \ncould use this to expose sensitive information (kernel memory). \n(CVE-2022-0382)\n\nIt was discovered that the VMware Virtual GPU driver in the Linux kernel \ndid not properly handle certain failure conditions, leading to a stale \nentry in the file descriptor table. A local attacker could use this to \nexpose sensitive information or possibly gain administrative privileges. \n(CVE-2022-22942)\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-02-09T00:00:00", "type": "ubuntu", "title": "Linux kernel (OEM) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27820", "CVE-2021-22600", "CVE-2021-28713", "CVE-2021-28714", "CVE-2021-28715", "CVE-2021-39685", "CVE-2021-4001", "CVE-2021-4083", "CVE-2021-4135", "CVE-2021-4155", "CVE-2021-4197", "CVE-2021-43975", "CVE-2021-44733", "CVE-2021-45095", "CVE-2021-45480", "CVE-2022-0264", "CVE-2022-0330", "CVE-2022-0382", "CVE-2022-22942", "CVE-2022-23222", "CVE-2022-24122"], "modified": "2022-02-09T00:00:00", "id": "USN-5278-1", "href": "https://ubuntu.com/security/notices/USN-5278-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-07-29T19:18:13", "description": "## Releases\n\n * Ubuntu 21.10 \n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-aws-5.13 \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gcp-5.13 \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-hwe-5.13 \\- Linux hardware enablement (HWE) kernel\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n * linux-raspi \\- Linux kernel for Raspberry Pi systems\n\nIt was discovered that the BPF verifier in the Linux kernel did not \nproperly restrict pointer types in certain situations. A local attacker \ncould use this to cause a denial of service (system crash) or possibly \nexecute arbitrary code. (CVE-2022-23222)\n\nYiqi Sun and Kevin Wang discovered that the cgroups implementation in the \nLinux kernel did not properly restrict access to the cgroups v1 \nrelease_agent feature. A local attacker could use this to gain \nadministrative privileges. (CVE-2022-0492)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen subsystem within the Linux kernel did \nnot adequately limit the number of events driver domains (unprivileged PV \nbackends) could send to other guest VMs. An attacker in a driver domain \ncould use this to cause a denial of service in other guest VMs. \n(CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen network backend driver in the Linux \nkernel did not adequately limit the amount of queued packets when a guest \ndid not process them. An attacker in a guest VM can use this to cause a \ndenial of service (excessive kernel memory consumption) in the network \nbackend domain. (CVE-2021-28714, CVE-2021-28715)\n\nSzymon Heidrich discovered that the USB Gadget subsystem in the Linux \nkernel did not properly restrict the size of control requests for certain \ngadget types, leading to possible out of bounds reads or writes. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-39685)\n\nIt was discovered that a race condition existed in the poll implementation \nin the Linux kernel, resulting in a use-after-free vulnerability. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-39698)\n\nIt was discovered that the simulated networking device driver for the Linux \nkernel did not properly initialize memory in certain situations. A local \nattacker could use this to expose sensitive information (kernel memory). \n(CVE-2021-4135)\n\nEric Biederman discovered that the cgroup process migration implementation \nin the Linux kernel did not perform permission checks correctly in some \nsituations. A local attacker could possibly use this to gain administrative \nprivileges. (CVE-2021-4197)\n\nBrendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device \ndriver in the Linux kernel did not properly validate meta-data coming from \nthe device. A local attacker who can control an emulated device can use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2021-43975)\n\nIt was discovered that the ARM Trusted Execution Environment (TEE) \nsubsystem in the Linux kernel contained a race condition leading to a use- \nafter-free vulnerability. A local attacker could use this to cause a denial \nof service or possibly execute arbitrary code. (CVE-2021-44733)\n\nIt was discovered that the Phone Network protocol (PhoNet) implementation \nin the Linux kernel did not properly perform reference counting in some \nerror conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45095)\n\nIt was discovered that the eBPF verifier in the Linux kernel did not \nproperly perform bounds checking on mov32 operations. A local attacker \ncould use this to expose sensitive information (kernel pointer addresses). \n(CVE-2021-45402)\n\nIt was discovered that the Reliable Datagram Sockets (RDS) protocol \nimplementation in the Linux kernel did not properly deallocate memory in \nsome error conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45480)\n\nIt was discovered that the BPF subsystem in the Linux kernel did not \nproperly track pointer types on atomic fetch operations in some situations. \nA local attacker could use this to expose sensitive information (kernel \npointer addresses). (CVE-2022-0264)\n\nIt was discovered that the TIPC Protocol implementation in the Linux kernel \ndid not properly initialize memory in some situations. A local attacker \ncould use this to expose sensitive information (kernel memory). \n(CVE-2022-0382)\n\nSamuel Page discovered that the Transparent Inter-Process Communication \n(TIPC) protocol implementation in the Linux kernel contained a stack-based \nbuffer overflow. A remote attacker could use this to cause a denial of \nservice (system crash) for systems that have a TIPC bearer configured. \n(CVE-2022-0435)\n\nIt was discovered that the KVM implementation for s390 systems in the Linux \nkernel did not properly prevent memory operations on PVM guests that were \nin non-protected mode. A local attacker could use this to obtain \nunauthorized memory write access. (CVE-2022-0516)\n\nIt was discovered that the ICMPv6 implementation in the Linux kernel did \nnot properly deallocate memory in certain situations. A remote attacker \ncould possibly use this to cause a denial of service (memory exhaustion). \n(CVE-2022-0742)\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-22T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.0, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28711", "CVE-2021-28712", "CVE-2021-28713", "CVE-2021-28714", "CVE-2021-28715", "CVE-2021-39685", "CVE-2021-39698", "CVE-2021-4135", "CVE-2021-4197", "CVE-2021-43975", "CVE-2021-44733", "CVE-2021-45095", "CVE-2021-45402", "CVE-2021-45480", "CVE-2022-0264", "CVE-2022-0382", "CVE-2022-0435", "CVE-2022-0492", "CVE-2022-0516", "CVE-2022-0742", "CVE-2022-23222"], "modified": "2022-03-22T00:00:00", "id": "USN-5337-1", "href": "https://ubuntu.com/security/notices/USN-5337-1", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}}, {"lastseen": "2023-07-29T19:17:27", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-azure-5.13 \\- Linux kernel for Microsoft Azure cloud systems\n * linux-oracle-5.13 \\- Linux kernel for Oracle Cloud systems\n\nIt was discovered that the BPF verifier in the Linux kernel did not \nproperly restrict pointer types in certain situations. A local attacker \ncould use this to cause a denial of service (system crash) or possibly \nexecute arbitrary code. (CVE-2022-23222)\n\nIt was discovered that the network traffic control implementation in the \nLinux kernel contained a use-after-free vulnerability. A local attacker \ncould use this to cause a denial of service (system crash) or possibly \nexecute arbitrary code. (CVE-2022-1055)\n\nYiqi Sun and Kevin Wang discovered that the cgroups implementation in the \nLinux kernel did not properly restrict access to the cgroups v1 \nrelease_agent feature. A local attacker could use this to gain \nadministrative privileges. (CVE-2022-0492)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen subsystem within the Linux kernel did \nnot adequately limit the number of events driver domains (unprivileged PV \nbackends) could send to other guest VMs. An attacker in a driver domain \ncould use this to cause a denial of service in other guest VMs. \n(CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)\n\nJ\u00fcrgen Gro\u00df discovered that the Xen network backend driver in the Linux \nkernel did not adequately limit the amount of queued packets when a guest \ndid not process them. An attacker in a guest VM can use this to cause a \ndenial of service (excessive kernel memory consumption) in the network \nbackend domain. (CVE-2021-28714, CVE-2021-28715)\n\nSzymon Heidrich discovered that the USB Gadget subsystem in the Linux \nkernel did not properly restrict the size of control requests for certain \ngadget types, leading to possible out of bounds reads or writes. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-39685)\n\nIt was discovered that a race condition existed in the poll implementation \nin the Linux kernel, resulting in a use-after-free vulnerability. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-39698)\n\nIt was discovered that the simulated networking device driver for the Linux \nkernel did not properly initialize memory in certain situations. A local \nattacker could use this to expose sensitive information (kernel memory). \n(CVE-2021-4135)\n\nEric Biederman discovered that the cgroup process migration implementation \nin the Linux kernel did not perform permission checks correctly in some \nsituations. A local attacker could possibly use this to gain administrative \nprivileges. (CVE-2021-4197)\n\nBrendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device \ndriver in the Linux kernel did not properly validate meta-data coming from \nthe device. A local attacker who can control an emulated device can use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2021-43975)\n\nIt was discovered that the ARM Trusted Execution Environment (TEE) \nsubsystem in the Linux kernel contained a race condition leading to a use- \nafter-free vulnerability. A local attacker could use this to cause a denial \nof service or possibly execute arbitrary code. (CVE-2021-44733)\n\nIt was discovered that the Phone Network protocol (PhoNet) implementation \nin the Linux kernel did not properly perform reference counting in some \nerror conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45095)\n\nIt was discovered that the eBPF verifier in the Linux kernel did not \nproperly perform bounds checking on mov32 operations. A local attacker \ncould use this to expose sensitive information (kernel pointer addresses). \n(CVE-2021-45402)\n\nIt was discovered that the Reliable Datagram Sockets (RDS) protocol \nimplementation in the Linux kernel did not properly deallocate memory in \nsome error conditions. A local attacker could possibly use this to cause a \ndenial of service (memory exhaustion). (CVE-2021-45480)\n\nIt was discovered that the BPF subsystem in the Linux kernel did not \nproperly track pointer types on atomic fetch operations in some situations. \nA local attacker could use this to expose sensitive information (kernel \npointer addresses). (CVE-2022-0264)\n\nIt was discovered that the TIPC Protocol implementation in the Linux kernel \ndid not properly initialize memory in some situations. A local attacker \ncould use this to expose sensitive information (kernel memory). \n(CVE-2022-0382)\n\nSamuel Page discovered that the Transparent Inter-Process Communication \n(TIPC) protocol implementation in the Linux kernel contained a stack-based \nbuffer overflow. A remote attacker could use this to cause a denial of \nservice (system crash) for systems that have a TIPC bearer configured. \n(CVE-2022-0435)\n\nIt was discovered that the KVM implementation for s390 systems in the Linux \nkernel did not properly prevent memory operations on PVM guests that were \nin non-protected mode. A local attacker could use this to obtain \nunauthorized memory write access. (CVE-2022-0516)\n\nIt was discovered that the ICMPv6 implementation in the Linux kernel did \nnot properly deallocate memory in certain situations. A remote attacker \ncould possibly use this to cause a denial of service (memory exhaustion). \n(CVE-2022-0742)\n\nIt was discovered that the IPsec implementation in the Linux kernel did not \nproperly allocate enough memory when performing ESP transformations, \nleading to a heap-based buffer overflow. A local attacker could use this to \ncause a denial of service (system crash) or possibly execute arbitrary \ncode. (CVE-2022-27666)\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-04-06T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.0, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28711", "CVE-2021-28712", "CVE-2021-28713", "CVE-2021-28714", "CVE-2021-28715", "CVE-2021-39685", "CVE-2021-39698", "CVE-2021-4135", "CVE-2021-4197", "CVE-2021-43975", "CVE-2021-44733", "CVE-2021-45095", "CVE-2021-45402", "CVE-2021-45480", "CVE-2022-0264", "CVE-2022-0382", "CVE-2022-0435", "CVE-2022-0492", "CVE-2022-0516", "CVE-2022-0742", "CVE-2022-1055", "CVE-2022-23222", "CVE-2022-27666"], "modified": "2022-04-06T00:00:00", "id": "USN-5368-1", "href": "https://ubuntu.com/security/notices/USN-5368-1", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2023-07-13T14:53:35", "description": "The remote Ubuntu 20.04 LTS / 21.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5337-1 advisory.\n\n - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.\n Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)\n\n - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).\n Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.\n (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)\n\n - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)\n\n - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-185125206References: Upstream kernel (CVE-2021-39698)\n\n - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)\n\n - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.\n This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object. (CVE-2021-44733)\n\n - pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.\n (CVE-2021-45095)\n\n - The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a pointer leak. (CVE-2021-45402)\n\n - An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the\n __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.\n (CVE-2021-45480)\n\n - A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures.\n Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6 (CVE-2022-0264)\n\n - An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1. (CVE-2022-0382)\n\n - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.\n (CVE-2022-0492)\n\n - A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. This flaw allows a local attacker with a normal user privilege to obtain unauthorized memory write access. This flaw affects Linux kernel versions prior to 5.17-rc4.\n (CVE-2022-0516)\n\n - Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go out-of-memory via icmp6 packets of type 130 or 131. We recommend upgrading past commit 2d3916f3189172d5c69d33065c3c21119fe539fc. (CVE-2022-0742)\n\n - kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types. (CVE-2022-23222)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-03-22T00:00:00", "type": "nessus", "title": "Ubuntu 20.04 LTS / 21.10 : Linux kernel vulnerabilities (USN-5337-1)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-28711", "CVE-2021-28712", "CVE-2021-28713", "CVE-2021-28714", "CVE-2021-28715", "CVE-2021-39685", "CVE-2021-39698", "CVE-2021-4135", "CVE-2021-4197", "CVE-2021-43975", "CVE-2021-44733", "CVE-2021-45095", "CVE-2021-45402", "CVE-2021-45480", "CVE-2022-0264", "CVE-2022-0382", "CVE-2022-0435", "CVE-2022-0492", "CVE-2022-0516", "CVE-2022-0742", "CVE-2022-23222"], "modified": "2023-07-12T00:00:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:20.04:-:lts", "cpe:/o:canonical:ubuntu_linux:21.10", "p-cpe:/a:canonical:ubuntu_linux:linux-aws", "p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.13-cloud-tools-5.13.0-1019", 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User interaction is not needed for exploitation.Product: AndroidVersions: Android\n kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)\n\n - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This\n could lead to local escalation of privilege with no additional execution privileges needed. User\n interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-185125206References: Upstream kernel (CVE-2021-39698)\n\n - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in\n drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a\n crafted device) to trigger an out-of-bounds write via a crafted length value. 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package_array['pkgver'];\n if (osver && pkgname && pkgver) {\n if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : ubuntu_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = ubuntu_pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'linux-aws / linux-aws-5.13-cloud-tools-5.13.0-1019 / etc');\n}\n", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-07-11T14:34:45", "description": "The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5368-1 advisory.\n\n - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2021-4197)\n\n - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.\n Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)\n\n - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).\n Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.\n (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)\n\n - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)\n\n - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-185125206References: Upstream kernel (CVE-2021-39698)\n\n - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)\n\n - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.\n This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object. (CVE-2021-44733)\n\n - pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.\n (CVE-2021-45095)\n\n - The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a pointer leak. (CVE-2021-45402)\n\n - An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the\n __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.\n (CVE-2021-45480)\n\n - A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures.\n Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6 (CVE-2022-0264)\n\n - An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1. (CVE-2022-0382)\n\n - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.\n This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network. (CVE-2022-0435)\n\n - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.\n (CVE-2022-0492)\n\n - A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. This flaw allows a local attacker with a normal user privilege to obtain unauthorized memory write access. This flaw affects Linux kernel versions prior to 5.17-rc4.\n (CVE-2022-0516)\n\n - Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go out-of-memory via icmp6 packets of type 130 or 131. We recommend upgrading past commit 2d3916f3189172d5c69d33065c3c21119fe539fc. (CVE-2022-0742)\n\n - A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 (CVE-2022-1055)\n\n - kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types. (CVE-2022-23222)\n\n - A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat. (CVE-2022-27666)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-04-07T00:00:00", "type": "nessus", "title": "Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5368-1)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-28711", "CVE-2021-28712", "CVE-2021-28713", "CVE-2021-28714", "CVE-2021-28715", "CVE-2021-39685", "CVE-2021-39698", "CVE-2021-4135", "CVE-2021-4197", "CVE-2021-43975", "CVE-2021-44733", "CVE-2021-45095", "CVE-2021-45402", "CVE-2021-45480", "CVE-2022-0264", "CVE-2022-0382", "CVE-2022-0435", "CVE-2022-0492", "CVE-2022-0516", "CVE-2022-0742", "CVE-2022-1055", "CVE-2022-23222", "CVE-2022-27666"], "modified": "2023-07-10T00:00:00", "cpe": ["p-cpe:/a:canonical:ubuntu_linux:linux-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.13-cloud-tools-5.13.0-1021", "p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.13-headers-5.13.0-1021", "p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.13-tools-5.13.0-1021", "p-cpe:/a:canonical:ubuntu_linux:linux-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-headers-oracle-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-image-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-image-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.13-headers-5.13.0-1025", "p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.13-tools-5.13.0-1025", "p-cpe:/a:canonical:ubuntu_linux:linux-oracle-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.13.0-1021-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.13.0-1025-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-azure", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-azure-edge", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-tools-oracle-edge", "cpe:/o:canonical:ubuntu_linux:20.04:-:lts"], "id": "UBUNTU_USN-5368-1.NASL", "href": "https://www.tenable.com/plugins/nessus/159579", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Ubuntu Security Notice USN-5368-1. 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(CVE-2020-27820)\n\n - A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2. (CVE-2021-4001)\n\n - A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system.\n This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)\n\n - A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 (CVE-2021-22600)\n\n - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.\n Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713 (CVE-2021-28713)\n\n - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).\n Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.\n (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)\n\n - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)\n\n - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.\n This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object. (CVE-2021-44733)\n\n - pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.\n (CVE-2021-45095)\n\n - An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the\n __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.\n (CVE-2021-45480)\n\n - A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures.\n Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. 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(CVE-2020-27820)\n\n - A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and\n bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special\n privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel\n versions prior to 5.16 rc2. (CVE-2021-4001)\n\n - A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket\n file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race\n condition. This flaw allows a local user to crash the system or escalate their privileges on the system.\n This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)\n\n - A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through\n crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected\n versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 (CVE-2021-22600)\n\n - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to\n multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the\n ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.\n Running PV backends in driver domains has one primary security advantage: if a driver domain gets\n compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain\n could try to attack other guests via sending events at a high frequency leading to a Denial of Service in\n the guest due to trying to service interrupts for elongated amounts of time. There are three affected\n backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch\n 3, CVE-2021-28713 (CVE-2021-28713)\n\n - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record\n relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]\n Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is\n ready to process them. There are some measures taken for avoiding to pile up too much data, but those can\n be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming\n new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).\n Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.\n (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in\n its RX queue ring page and the next package would require more than one free slot, which may be the case\n when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)\n\n - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in\n drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a\n crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)\n\n - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.\n This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory\n object. (CVE-2021-44733)\n\n - pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.\n (CVE-2021-45095)\n\n - An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the\n __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.\n (CVE-2021-45480)\n\n - A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures.\n Internal memory locations could be returned to userspace. A local attacker with the permissions to insert\n eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit\n mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6 (CVE-2022-0264)\n\n - kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of\n the availability of pointer arithmetic via certain *_OR_NULL pointer types. 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