USN-4738-1: OpenSSL vulnerabilities

Paul Kehrer discovered that OpenSSL incorrectly handled certain input lengths in EVP functions. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. CVE-2021-23840 Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer...

USN-4737-1: Bind vulnerability

It was discovered that Bind incorrectly handled GSSAPI security policy negotiation. A remote attacker could use this issue to cause Bind to crash, resulting in a denial of service, or possibly execute arbitrary code. In the default installation, attackers would be isolated by the Bind AppArmor...

USN-4734-2: wpa_supplicant and hostapd vulnerabilities

USN-4734-1 fixed several vulnerabilities in wpasupplicant. This update provides the corresponding update for Ubuntu 14.04 ESM. It was discovered that wpasupplicant did not properly handle P2P Wi-Fi Direct group information in some situations, leading to a heap overflow. A physically proximate...

USN-4736-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. CVE-2020-26976,...

USN-4735-1: PostgreSQL vulnerability

Heikki Linnakangas discovered that PostgreSQL incorrectly leaked values of denied columns when handling certain errors. A remote attacker could possibly use this issue to obtain sensitive information...

USN-4734-1: wpa_supplicant and hostapd vulnerabilities

It was discovered that wpasupplicant did not properly handle P2P Wi-Fi Direct group information in some situations, leading to a heap overflow. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. CVE-2021-0326 It was discovered that...

USN-4733-1: GNOME Autoar vulnerability

Yiğit Can Yılmaz discovered that GNOME Autoar could extract files outside of the intended directory. If a user were tricked into extracting a specially crafted archive, a remote attacker could create files in arbitrary locations, possibly leading to code execution...

USN-4732-1: SQLite vulnerability

It was discovered that SQLite incorrectly handled certain sub-queries. An attacker could use this issue to cause SQLite to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-4730-1: PostSRSd vulnerability

It was discovered that PostSRSd mishandled certain input. A remote attacker could use this vulnerability to cause a denial of service via a long timestamp tag in an SRS address...

USN-4731-1: JUnit 4 vulnerability

It was discovered that JUnit 4 contains a local information disclosure vulnerability. An attacker could possibly use this issue to obtain sensitive information...

USN-4729-1: Open vSwitch vulnerability

Joakim Hindersson discovered that Open vSwitch incorrectly parsed certain network packets. A remote attacker could use this issue to cause a denial of service, or possibly alter packet classification...

USN-4713-2: Linux kernel vulnerability

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data...

USN-4728-1: snapd vulnerability

Gilad Reti and Nimrod Stoler discovered that snapd did not correctly specify cgroup delegation when generating systemd service units for various container management snaps. This could allow a local attacker to escalate privileges via access to arbitrary devices of the container host from within a...

USN-4727-1: Linux kernel vulnerability

Alexander Popov discovered that multiple race conditions existed in the AFVSOCK implementation in the Linux kernel. A local attacker could use this to cause a denial of service system crash or execute arbitrary code...

USN-4726-1: OpenJDK vulnerability

It was discovered that OpenJDK incorrectly handled the direct buffering of characters. An attacker could use this issue to cause OpenJDK to crash, resulting in a denial of service, or cause other unspecified impact...

USN-4717-2: Firefox regression

USN-4717-1 fixed vulnerabilities in Firefox. The update caused a startup hang in some circumstances. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially...

USN-4725-1: QEMU vulnerabilities

It was discovered that QEMU incorrectly handled memory in iSCSI emulation. An attacker inside the guest could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. CVE-2020-11947 Alexander Bulekov discovered tha...

USN-4724-1: OpenLDAP vulnerabilities

It was discovered that OpenLDAP incorrectly handled Certificate Exact Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. CVE-2020-36221 It was discovered that OpenLDAP incorrectly handled saslAuthzTo processing. A...

USN-4723-1: PEAR vulnerability

It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute arbitrary code...

USN-4711-1: Linux kernel vulnerabilities

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data...

USN-4722-1: ReadyMedia (MiniDLNA) vulnerabilities

It was discovered that ReadyMedia MiniDLNA allowed subscription requests with a delivery URL on a different network segment than the fully qualified event- subscription URL. An attacker could use this to hijack smart devices and cause denial of service attacks. CVE-2020-12695 It was discovered th...

USN-4721-1: Flatpak vulnerability

Simon McVittie discovered that flatpak-portal service allowed sandboxed applications to execute arbitrary code on the host system a sandbox escape. A malicious user could create a Flatpak application that set environment variables, trusted by the Flatpak "run" command, and use it to execute...

USN-4720-2: Apport vulnerabilities

USN-4720-1 fixed several vulnerabilities in Apport. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Itai Greenhut discovered that Apport incorrectly parsed certain files in the /proc filesystem. A local attacker could use this issue to escalate...

USN-4710-1: Linux kernel vulnerability

Kiyin 尹亮 discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service kernel memory exhaustion...

USN-4720-1: Apport vulnerabilities

Itai Greenhut discovered that Apport incorrectly parsed certain files in the /proc filesystem. A local attacker could use this issue to escalate privileges and run arbitrary code. CVE-2021-25682, CVE-2021-25683 Itai Greenhut discovered that Apport incorrectly handled opening certain special files...

USN-4719-1: ca-certificates update

The ca-certificates package contained outdated CA certificates. This update refreshes the included certificates to those contained in the 2.46 version of the Mozilla certificate authority bundle...

USN-4718-1: fastd vulnerability

It was discovered that fastd incorrectly handled certain packets. An attacker could possibly use this issue to cause a denial of service...

USN-4467-2: QEMU vulnerabilities

USN-4467-1 fixed several vulnerabilities in QEMU. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that the QEMU SD memory card implementation incorrectly handled certain memory operations. An attacker inside a guest could possibly u...

USN-4709-1: Linux kernel vulnerabilities

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data...

USN-4712-1: Linux kernel regression

USN-4576-1 fixed a vulnerability in the overlay file system implementation in the Linux kernel. Unfortunately, that fix introduced a regression that could incorrectly deny access to overlay files in some situations. This update fixes the problem. We apologize for the inconvenience. Original...

USN-4713-1: Linux kernel vulnerability

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data...

USN-4717-1: Firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, conduct clickjacking attacks, or execute arbitrary code...

USN-4715-2: Django vulnerability

USN-4715-1 fixed a vulnerability in Django. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Wang Baohua discovered that Django incorrectly extracted archive files. A remote attacker could possibly use this issue to extract files outside of their...

USN-4716-1: MySQL vulnerabilities

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 8.0.23 in Ubuntu 20.04 LTS and Ubuntu 20.10. Ubuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL 5.7.33. In addition to security fixes...

USN-4715-1: Django vulnerability

Wang Baohua discovered that Django incorrectly extracted archive files. A remote attacker could possibly use this issue to extract files outside of their expected location...

USN-4714-1: XStream vulnerabilities

Zhihong Tian and Hui Lu found that XStream was vulnerable to remote code execution. A remote attacker could run arbitrary shell commands by manipulating the processed input stream. CVE-2020-26217 It was discovered that XStream was vulnerable to server-side forgery attacks. A remote attacker could...

USN-4707-1: TCMU vulnerability

It was discovered that TCMU lacked a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request...

USN-4706-1: Ceph vulnerabilities

Olle Segerdahl found that ceph-mon and ceph-mgr daemons did not properly restrict access, resulting in gaining access to unauthorized resources. An authenticated user could use this vulnerability to modify the configuration and possibly conduct further attacks. CVE-2020-10736 Adam Mohammed found...

USN-4708-1: Linux kernel vulnerabilities

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service system crash. CVE-2018-13093 It was discovered that the btrfs fi...

USN-4705-2: Sudo vulnerability

USN-4705-1 fixed a vulnerability in Sudo. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that Sudo incorrectly handled memory when parsing command lines. A local attacker could possibly use this issue to obtain...

USN-4705-1: Sudo vulnerabilities

It was discovered that Sudo incorrectly handled memory when parsing command lines. A local attacker could possibly use this issue to obtain unintended access to the administrator account. CVE-2021-3156 It was discovered that the Sudo sudoedit utility incorrectly handled checking directory...

USN-4704-1: libsndfile vulnerabilities

It was discovered that libsndfile incorrectly handled certain malformed files. A remote attacker could use this issue to cause libsndfile to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2017-12562 It was discovered that libsndfile incorrectly handled certain...

LSN-0074-1: Kernel Live Patch Security Notice

Elena Petrova discovered that the pin controller device tree implementation in the Linux kernel did not properly handle string references. A local attacker could use this to expose sensitive information kernel memory. CVE-2020-0427 Andy Nguyen discovered that the Bluetooth A2MP implementation in...

USN-4703-1: Mutt vulnerability

It was discovered that Mutt incorrectly handled certain email messages. An attacker could possibly use this issue to cause a denial of service...

USN-4702-1: Pound vulnerabilities

It was discovered that Pound incorrectly handled certain HTTP requests A remote attacker could use it to retrieve some sensitive information. CVE-2016-10711, CVE-2018-21245...

USN-4689-4: Linux kernel update

USN-4689-3 fixed vulnerabilities in the NVIDIA server graphics drivers. This update provides the corresponding updates for the NVIDIA Linux DKMS kernel modules. Original advisory details: It was discovered that the NVIDIA GPU display driver for the Linux kernel contained a vulnerability that...

USN-4697-2: Pillow vulnerabilities

USN-4697-1 fixed several vulnerabilities in Pillow. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that Pillow incorrectly handled certain PCX image files. If a user or automated system were tricked into opening a specially-crafted...

USN-4689-3: NVIDIA graphics drivers vulnerabilities

It was discovered that the NVIDIA GPU display driver for the Linux kernel contained a vulnerability that allowed user-mode clients to access legacy privileged APIs. A local attacker could use this to cause a denial of service or escalate privileges. CVE-2021-1052 It was discovered that the NVIDIA...

USN-4701-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass the CSS sanitizer, or execute arbitrary...

USN-4700-1: PyXDG vulnerability

Alexandre D'Hondt discovered that PyXDG did not properly sanitize input. An attacker could exploit this with a crafted .menu file to execute arbitrary code...