==========================================================================
\nUbuntu Security Notice USN-5500-1
\nJuly 01, 2022<\/p>\n
linux, linux-aws vulnerabilities
\n==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 16.04 ESM<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in the Linux kernel.<\/p>\n
Software Description:
\n– linux: Linux kernel
\n– linux-aws: Linux kernel for Amazon Web Services (AWS) systems<\/p>\n
Details:<\/p>\n
Eric 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)<\/p>\n
Lin Ma discovered that the NFC Controller Interface (NCI) implementation in
\nthe Linux kernel contained a race condition, leading to a use-after-free
\nvulnerability. A local attacker could use this to cause a denial of service
\n(system crash) or possibly execute arbitrary code. (CVE-2021-4202)<\/p>\n
It was discovered that the PF_KEYv2 implementation in the Linux kernel did
\nnot properly initialize kernel memory in some situations. A local attacker
\ncould use this to expose sensitive information (kernel memory).
\n(CVE-2022-1353)<\/p>\n
It was discovered that the virtual graphics memory manager implementation
\nin the Linux kernel was subject to a race condition, potentially leading to
\nan information leak. (CVE-2022-1419)<\/p>\n
Minh Yuan discovered that the floppy disk driver in the Linux kernel
\ncontained a race condition, leading to a use-after-free vulnerability. A
\nlocal attacker could possibly use this to cause a denial of service (system
\ncrash) or execute arbitrary code. (CVE-2022-1652)<\/p>\n
It was discovered that the Atheros ath9k wireless device driver in the
\nLinux kernel did not properly handle some error conditions, leading to a
\nuse-after-free vulnerability. A local attacker could use this to cause a
\ndenial of service (system crash) or possibly execute arbitrary code.
\n(CVE-2022-1679)<\/p>\n
It was discovered that the Marvell NFC device driver implementation in the
\nLinux kernel did not properly perform memory cleanup operations in some
\nsituations, leading to a use-after-free vulnerability. A local attacker
\ncould possibly use this to cause a denial of service (system) or execute
\narbitrary code. (CVE-2022-1734)<\/p>\n
\u8d75\u5b50\u8f69 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not
\nproperly perform reference counting in some error conditions. A local
\nattacker could use this to cause a denial of service. (CVE-2022-28356)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
\npackage versions:<\/p>\n
Ubuntu 16.04 ESM:
\nlinux-image-4.4.0-1145-aws 4.4.0-1145.160
\nlinux-image-4.4.0-229-generic 4.4.0-229.263
\nlinux-image-4.4.0-229-lowlatency 4.4.0-229.263
\nlinux-image-aws 4.4.0.1145.149
\nlinux-image-generic 4.4.0.229.235
\nlinux-image-lowlatency 4.4.0.229.235
\nlinux-image-virtual 4.4.0.229.235<\/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-5500-1
\nCVE-2021-4197, CVE-2021-4202, CVE-2022-1353, CVE-2022-1419,
\nCVE-2022-1652, CVE-2022-1679, CVE-2022-1734, CVE-2022-28356<\/p>\n","protected":false},"excerpt":{"rendered":"
========================================================================== Ubuntu Security Notice USN-5500-1 July 01, 2022 linux, linux-aws vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 16.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: – linux: Linux kernel – linux-aws: Linux kernel for Amazon Web Services (AWS) systems Details: Eric …<\/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-26528","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/26528","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=26528"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/26528\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=26528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=26528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=26528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}