=========================================================================
\nUbuntu Security Notice USN-5295-1
\nFebruary 18, 2022<\/p>\n
linux-hwe-5.13 vulnerabilities
\n=========================================================================
\nA security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 20.04 LTS<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in the Linux kernel.<\/p>\n
Software Description:
\n– linux-hwe-5.13: Linux hardware enablement (HWE) kernel<\/p>\n
Details:<\/p>\n
It 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)<\/p>\n
Jann 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)<\/p>\n
Kirill 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)<\/p>\n
Sushma 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)<\/p>\n
It 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)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
\npackage versions:<\/p>\n
Ubuntu 20.04 LTS:
\nlinux-image-5.13.0-30-generic 5.13.0-30.33~20.04.1
\nlinux-image-5.13.0-30-generic-64k 5.13.0-30.33~20.04.1
\nlinux-image-5.13.0-30-generic-lpae 5.13.0-30.33~20.04.1
\nlinux-image-5.13.0-30-lowlatency 5.13.0-30.33~20.04.1
\nlinux-image-generic-64k-hwe-20.04 5.13.0.30.33~20.04.17
\nlinux-image-generic-hwe-20.04 5.13.0.30.33~20.04.17
\nlinux-image-generic-lpae-hwe-20.04 5.13.0.30.33~20.04.17
\nlinux-image-lowlatency-hwe-20.04 5.13.0.30.33~20.04.17
\nlinux-image-virtual-hwe-20.04 5.13.0.30.33~20.04.17<\/p>\n
After a standard system update you need to reboot your computer to make
\nall the necessary changes.<\/p>\n
ATTENTION: Due to an unavoidable ABI change the kernel updates have
\nbeen given a new version number, which requires you to recompile and
\nreinstall all third party kernel modules you might have installed.
\nUnless you manually uninstalled the standard kernel metapackages
\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
\nlinux-powerpc), a standard system upgrade will automatically perform
\nthis as well.<\/p>\n
References:
\nhttps:\/\/ubuntu.com\/security\/notices\/USN-5295-1
\nCVE-2021-22600, CVE-2021-4083, CVE-2021-4155, CVE-2022-0330,
\nCVE-2022-22942<\/p>\n
Package Information:
\nhttps:\/\/launchpad.net\/ubuntu\/+source\/linux-hwe-5.13\/5.13.0-30.33~20.04.1<\/p>\n","protected":false},"excerpt":{"rendered":"
========================================================================= Ubuntu Security Notice USN-5295-1 February 18, 2022 linux-hwe-5.13 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: – linux-hwe-5.13: Linux hardware enablement (HWE) kernel Details: It was discovered that the Packet network protocol implementation …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-20949","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/20949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=20949"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/20949\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=20949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=20949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=20949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}