=========================================================================
\nUbuntu Security Notice USN-5413-1
\nMay 12, 2022<\/p>\n
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
\n=========================================================================
\nA security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 16.04 ESM
\n– Ubuntu 14.04 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
\n– linux-kvm: Linux kernel for cloud environments
\n– linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty<\/p>\n
Details:<\/p>\n
Jeremy Cline discovered a use-after-free in the nouveau graphics driver
\nof the Linux kernel during device removal. A privileged or physically
\nproximate attacker could use this to cause a denial of service (system
\ncrash). (CVE-2020-27820)<\/p>\n
It was discovered that a race condition existed in the network scheduling
\nsubsystem of the Linux kernel, leading to a use-after-free vulnerability. A
\nlocal attacker could use this to cause a denial of service (system crash)
\nor possibly execute arbitrary code. (CVE-2021-39713)<\/p>\n
It was discovered that the Parallel NFS (pNFS) implementation in the Linux
\nkernel did not properly perform bounds checking in some situations. An
\nattacker could use this to cause a denial of service (system crash) or
\npossibly execute arbitrary code. (CVE-2021-4157)<\/p>\n
It was discovered that the ST21NFCA NFC driver in the Linux kernel did not
\nproperly validate the size of certain data in EVT_TRANSACTION events. A
\nphysically proximate attacker could use this to cause a denial of service
\n(system crash) or possibly execute arbitrary code. (CVE-2022-26490)<\/p>\n
It was discovered that the Xilinx USB2 device gadget driver in the Linux
\nkernel did not properly validate endpoint indices from the host. A
\nphysically proximate attacker could possibly use this to cause a denial of
\nservice (system crash). (CVE-2022-27223)<\/p>\n
It was discovered that the EMS CAN\/USB interface implementation in the
\nLinux kernel contained a double-free vulnerability when handling certain
\nerror conditions. A local attacker could use this to cause a denial of
\nservice (memory exhaustion). (CVE-2022-28390)<\/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-4.4.0-1105-kvm 4.4.0-1105.114
\nlinux-image-4.4.0-1140-aws 4.4.0-1140.154
\nlinux-image-4.4.0-224-generic 4.4.0-224.257
\nlinux-image-4.4.0-224-lowlatency 4.4.0-224.257
\nlinux-image-aws 4.4.0.1140.145
\nlinux-image-generic 4.4.0.224.231
\nlinux-image-kvm 4.4.0.1105.103
\nlinux-image-lowlatency 4.4.0.224.231
\nlinux-image-virtual 4.4.0.224.231<\/p>\n
Ubuntu 14.04 ESM:
\nlinux-image-4.4.0-224-generic 4.4.0-224.257~14.04.1
\nlinux-image-4.4.0-224-lowlatency 4.4.0-224.257~14.04.1
\nlinux-image-generic-lts-xenial 4.4.0.224.195
\nlinux-image-lowlatency-lts-xenial 4.4.0.224.195
\nlinux-image-virtual-lts-xenial 4.4.0.224.195<\/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-5413-1
\nCVE-2020-27820, CVE-2021-39713, CVE-2021-4157, CVE-2022-26490,
\nCVE-2022-27223, CVE-2022-28390<\/p>\n","protected":false},"excerpt":{"rendered":"
========================================================================= Ubuntu Security Notice USN-5413-1 May 12, 2022 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 16.04 ESM – Ubuntu 14.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: – linux: Linux kernel – linux-aws: Linux kernel for Amazon …<\/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-24377","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/24377","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=24377"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/24377\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=24377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=24377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=24377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}