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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.0715 USN-5295-1: Linux kernel (HWE) vulnerabilities 18 February 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux kernel Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2022-22942 CVE-2022-0330 CVE-2021-22600 CVE-2021-4155 CVE-2021-4083 Reference: ESB-2022.0707 ESB-2022.0677 ESB-2022.0667 ESB-2022.0250 Original Bulletin: https://ubuntu.com/security/notices/USN-5295-1 Comment: CVSS (Max): 7.4 CVE-2021-4083 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Red Hat - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5295-1: Linux kernel (HWE) vulnerabilities 18 February 2022 Several security issues were fixed in the Linux kernel. Releases o Ubuntu 20.04 LTS Packages o linux-hwe-5.13 - Linux hardware enablement (HWE) kernel Details It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ( CVE-2021-22600 ) Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ( CVE-2021-4083 ) Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. ( CVE-2021-4155 ) Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. ( CVE-2022-0330 ) It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this to expose sensitive information or possibly gain administrative privileges. ( CVE-2022-22942 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o linux-image-5.13.0-30-lowlatency - 5.13.0-30.33~20.04.1 o linux-image-generic-hwe-20.04 - 5.13.0.30.33~20.04.17 o linux-image-5.13.0-30-generic-lpae - 5.13.0-30.33~20.04.1 o linux-image-generic-lpae-hwe-20.04 - 5.13.0.30.33~20.04.17 o linux-image-lowlatency-hwe-20.04 - 5.13.0.30.33~20.04.17 o linux-image-virtual-hwe-20.04 - 5.13.0.30.33~20.04.17 o linux-image-5.13.0-30-generic - 5.13.0-30.33~20.04.1 o linux-image-5.13.0-30-generic-64k - 5.13.0-30.33~20.04.1 o linux-image-generic-64k-hwe-20.04 - 5.13.0.30.33~20.04.17 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 o CVE-2021-4083 o CVE-2021-4155 o CVE-2022-22942 o CVE-2022-0330 o CVE-2021-22600 Related notices o USN-5278-1 : linux-oem-20.04d, linux-image-oem-20.04d, linux-modules-5.14.0-1022-oem, linux-headers-oem-20.04d, linux-image-5.14.0-1022-oem, linux-oem-5.14-tools-host, linux-oem-5.14, linux-image-unsigned-5.14.0-1022-oem, linux-headers-5.14.0-1022-oem, linux-tools-5.14.0-1022-oem, linux-buildinfo-5.14.0-1022-oem, linux-tools-oem-20.04d, linux-oem-5.14-tools-5.14.0-1022, linux-oem-5.14-headers-5.14.0-1022 o USN-5266-1 : linux-tools-gke, linux-image-5.4.0-1061-gke, linux-tools-gke-5.4, linux-modules-extra-gke, linux-buildinfo-5.4.0-1061-gke, linux-headers-gke, linux-modules-extra-gke-5.4, linux-modules-5.4.0-1061-gke, linux-headers-5.4.0-1061-gke, linux-gke-5.4-headers-5.4.0-1061, linux-gke-5.4, linux-gke-headers-5.4.0-1061, linux-modules-extra-5.4.0-1061-gke, linux-gke, linux-image-gke, linux-image-gke-5.4, linux-image-unsigned-5.4.0-1061-gke, linux-gke-5.4-tools-5.4.0-1061, linux-headers-gke-5.4, linux-tools-5.4.0-1061-gke, linux-gke-tools-5.4.0-1061 o USN-5294-1 : linux-tools-lowlatency-hwe-18.04-edge, linux-image-generic-lpae, linux-generic-hwe-18.04-edge, linux-image-lowlatency-hwe-18.04-edge, linux-headers-generic-hwe-18.04-edge, linux-headers-lowlatency-hwe-18.04, linux-headers-generic-lpae-hwe-18.04, linux-cloud-tools-lowlatency-hwe-18.04, linux-virtual-hwe-18.04-edge, linux-tools-oem-osp1, linux-cloud-tools-generic-hwe-18.04-edge, linux-generic-hwe-18.04, linux-headers-5.4.0-100-generic-lpae, linux-modules-extra-5.4.0-100-generic, linux-tools-generic-lpae-hwe-18.04-edge, linux-tools-generic, linux-generic-lpae, linux-source, linux-generic, linux-lowlatency-hwe-18.04, linux-image-generic-lpae-hwe-18.04, linux-tools-oem, linux-modules-5.4.0-100-generic-lpae, linux-image-lowlatency-hwe-18.04, linux-tools-5.4.0-100-generic-lpae, linux-image-5.4.0-100-lowlatency, linux-cloud-tools-virtual-hwe-18.04-edge, linux-generic-lpae-hwe-18.04, linux-headers-generic-hwe-18.04, linux, linux-tools-lowlatency-hwe-18.04, linux-tools-virtual-hwe-18.04-edge, linux-crashdump, linux-headers-virtual, linux-cloud-tools-5.4.0-100, linux-image-extra-virtual-hwe-18.04-edge, linux-tools-5.4.0-100-lowlatency, linux-headers-5.4.0-100-lowlatency, linux-oem-tools-host, linux-generic-lpae-hwe-18.04-edge, linux-oem-osp1, linux-image-extra-virtual-hwe-18.04, linux-tools-5.4.0-100-generic, linux-cloud-tools-5.4.0-100-lowlatency, linux-headers-oem-osp1, linux-libc-dev, linux-cloud-tools-5.4.0-100-generic, linux-lowlatency, linux-headers-virtual-hwe-18.04, linux-source-5.4.0, linux-lowlatency-hwe-18.04-edge, linux-buildinfo-5.4.0-100-generic, linux-headers-generic-lpae, linux-doc, linux-image-generic, linux-tools-virtual-hwe-18.04, linux-image-generic-hwe-18.04-edge, linux-tools-generic-hwe-18.04-edge, linux-image-virtual-hwe-18.04, linux-cloud-tools-virtual, linux-cloud-tools-virtual-hwe-18.04, linux-headers-5.4.0-100-generic, linux-tools-generic-lpae, linux-image-5.4.0-100-generic-lpae, linux-tools-5.4.0-100, linux-image-5.4.0-100-generic, linux-headers-generic, linux-virtual, linux-image-lowlatency, linux-virtual-hwe-18.04, linux-tools-common, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-headers-lowlatency-hwe-18.04-edge, linux-buildinfo-5.4.0-100-lowlatency, linux-tools-generic-lpae-hwe-18.04, linux-cloud-tools-lowlatency, linux-headers-oem, linux-cloud-tools-generic-hwe-18.04, linux-oem-osp1-tools-host, linux-image-unsigned-5.4.0-100-lowlatency, linux-tools-virtual, linux-tools-lowlatency, linux-image-virtual, linux-image-virtual-hwe-18.04-edge, linux-headers-virtual-hwe-18.04-edge, linux-image-generic-hwe-18.04, linux-buildinfo-5.4.0-100-generic-lpae, linux-headers-generic-lpae-hwe-18.04-edge, linux-cloud-tools-generic, linux-image-generic-lpae-hwe-18.04-edge, linux-modules-5.4.0-100-generic, linux-oem, linux-image-oem, linux-image-oem-osp1, linux-tools-host, linux-image-extra-virtual, linux-headers-lowlatency, linux-tools-generic-hwe-18.04, linux-modules-5.4.0-100-lowlatency, linux-cloud-tools-common, linux-image-unsigned-5.4.0-100-generic, linux-headers-5.4.0-100 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYg81w+NLKJtyKPYoAQgCpxAAg+sprgXG0/OPBy46oOlHFm7fJZ5RYjsZ 3qnuhYS6ytGNxtXoboIPae/u2jyoRYk7BNgHZmjSd0amDBbPRmj5NXjjPXFpeNvl zWZXL1JWwBhwf5MrDjBfuXrAw6wY7W8OMQHKBbC/q2g95QwQIhqW3+6w2d4CMkhJ odF8wA1GU6eyCKW7wCfZq1ss3m5E6y3V5Mh2fEngvOMqqoSUuZmEnLdi3csguC2+ n6ISbmnZRrhHGQhdPwsUrMr8IJNn9GeTSjkS44rF6VgJNK5o8hXNfMtixBvL3DKI mEJjxQ5FZRgqC+KguUme62J2f0wuiqQAjh9/l3/PD6Su8Zx+RvDZ8k1exhGti9Cn x0/SKlSEIwdIP7HWG4dRp27c1vKmcZRYIzW50n+KoBWBCU8WeMFotcUk281yt7VA ezcHiOgDF0hmBf0bkIudbJyQFfk0F9P3bUm3JEmpl+YDWcnhCR3oTvNjp5fWrUmn CtGl8Hx4XcHcbIVuQG5JrFSCnJ88PWI0jXslUrZYxZbiD2ZNTq2mDCtw+6StxpYz sLnKauRW7qUjYMn2CQvzJBZ5cR/e7twDUvzgP67Dt2Q48Av3o35WHzBqmMzT0VtS oC95U2EvhCc/+mXsQz7xIFK6SwzCN216DGQw6Vt69KbRXUoxOzo/9lpobnUIWtc5 qT4EC79ilLs= =mp5U -----END PGP SIGNATURE-----