[USN-5688-1] Libksba vulnerability
== Ubuntu Security Notice USN-5688-1 October 19, 2022 libksba vulnerability == A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Libksba could be made to crash or run programs if it decoded specially crafted data. Software Description: - libksba: X.509 and CMS support library Details: It was discovered that an integer overflow could be triggered in Libksba when decoding certain data. An attacker could use this issue to cause a denial of service (application crash) or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: libksba81.6.0-2ubuntu0.1 Ubuntu 20.04 LTS: libksba81.3.5-2ubuntu0.20.04.1 Ubuntu 18.04 LTS: libksba81.3.5-2ubuntu0.18.04.1 Ubuntu 16.04 ESM: libksba81.3.3-1ubuntu0.16.04.1+esm1 Ubuntu 14.04 ESM: libksba81.3.0-3ubuntu0.14.04.2+esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5688-1 CVE-2022-3515 Package Information: https://launchpad.net/ubuntu/+source/libksba/1.6.0-2ubuntu0.1 https://launchpad.net/ubuntu/+source/libksba/1.3.5-2ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/libksba/1.3.5-2ubuntu0.18.04.1 signature.asc Description: PGP signature
[USN-5687-1] Linux kernel (Azure) vulnerabilities
== Ubuntu Security Notice USN-5687-1 October 18, 2022 linux-azure-4.15 vulnerabilities == A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems Details: It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812) Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296) Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318) Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365) Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740) It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742) Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1153-azure 4.15.0-1153.168 linux-image-azure-lts-18.04 4.15.0.1153.123 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-5687-1 CVE-2022-0812, CVE-2022-1012, CVE-2022-2318, CVE-2022-26365, CVE-2022-32296, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, CVE-2022-33744 Package Information: https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1153.168 OpenPGP_signature Description: OpenPGP digital signature
[USN-5686-1] Git vulnerabilities
== Ubuntu Security Notice USN-5686-1 October 18, 2022 git vulnerabilities == A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in Git. Software Description: - git: fast, scalable, distributed revision control system Details: Cory Snider discovered that Git incorrectly handled certain symbolic links. An attacker could possibly use this issue to cause an unexpected behaviour. (CVE-2022-39253) Kevin Backhouse discovered that Git incorrectly handled certain command strings. An attacker could possibly use this issue to arbitrary code execution. (CVE-2022-39260) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: git 1:2.34.1-1ubuntu1.5 Ubuntu 20.04 LTS: git 1:2.25.1-1ubuntu3.6 Ubuntu 18.04 LTS: git 1:2.17.1-1ubuntu0.13 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5686-1 CVE-2022-39253, CVE-2022-39260 Package Information: https://launchpad.net/ubuntu/+source/git/1:2.34.1-1ubuntu1.5 https://launchpad.net/ubuntu/+source/git/1:2.25.1-1ubuntu3.6 https://launchpad.net/ubuntu/+source/git/1:2.17.1-1ubuntu0.13 signature.asc Description: PGP signature
[USN-5685-1] FRR vulnerabilities
== Ubuntu Security Notice USN-5685-1 October 18, 2022 frr vulnerabilities == A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in FRR. Software Description: - frr: FRRouting suite of internet protocols Details: It was discovered that FRR incorrectly handled parsing certain BGP messages. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2022-37032) It was discovered that FRR incorrectly handled processing certain BGP messages. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2022-37035) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: frr 8.1-1ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5685-1 CVE-2022-37032, CVE-2022-37035 Package Information: https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.2 OpenPGP_signature Description: OpenPGP digital signature
