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=====================================================================
\nRed Hat Security Advisory<\/p>\n
Synopsis: Important: kernel-rt security and bug fix update
\nAdvisory ID: RHSA-2022:0622-01
\nProduct: Red Hat Enterprise Linux
\nAdvisory URL: https:\/\/access.redhat.com\/errata\/RHSA-2022:0622
\nIssue date: 2022-02-22
\nCVE Names: CVE-2020-0465 CVE-2020-0466 CVE-2021-0920
\nCVE-2021-3564 CVE-2021-3573 CVE-2021-3752
\nCVE-2021-4155 CVE-2022-0330 CVE-2022-22942
\n=====================================================================<\/p>\n
1. Summary:<\/p>\n
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.<\/p>\n
Red Hat Product Security has rated this update as having a security impact
\nof Important. A Common Vulnerability Scoring System (CVSS) base score,
\nwhich gives a detailed severity rating, is available for each vulnerability
\nfrom the CVE link(s) in the References section.<\/p>\n
2. Relevant releases\/architectures:<\/p>\n
Red Hat Enterprise Linux for Real Time (v. 7) – noarch, x86_64
\nRed Hat Enterprise Linux for Real Time for NFV (v. 7) – noarch, x86_64<\/p>\n
3. Description:<\/p>\n
The kernel-rt packages provide the Real Time Linux Kernel, which enables
\nfine-tuning for systems with extremely high determinism requirements.<\/p>\n
Security Fix(es):<\/p>\n
* kernel: use after free in eventpoll.c may lead to escalation of privilege
\n(CVE-2020-0466)<\/p>\n
* kernel: Use After Free in unix_gc() which could result in a local
\nprivilege escalation (CVE-2021-0920)<\/p>\n
* kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
\n(CVE-2021-4155)<\/p>\n
* kernel: possible privileges escalation due to missing TLB flush
\n(CVE-2022-0330)<\/p>\n
* kernel: failing usercopy allows for use-after-free exploitation
\n(CVE-2022-22942)<\/p>\n
* kernel: out of bounds write in hid-multitouch.c may lead to escalation of
\nprivilege (CVE-2020-0465)<\/p>\n
* kernel: double free in bluetooth subsystem when the HCI device
\ninitialization fails (CVE-2021-3564)<\/p>\n
* kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)<\/p>\n
* kernel: possible use-after-free in bluetooth module (CVE-2021-3752)<\/p>\n
For more details about the security issue(s), including the impact, a CVSS
\nscore, acknowledgments, and other related information, refer to the CVE
\npage(s) listed in the References section.<\/p>\n
Bug Fix(es):<\/p>\n
* kernel-rt: update to the latest RHEL7.9.z12 source tree (BZ#2039101)<\/p>\n
4. Solution:<\/p>\n
For details on how to apply this update, which includes the changes
\ndescribed in this advisory, refer to:<\/p>\n
https:\/\/access.redhat.com\/articles\/11258<\/p>\n
The system must be rebooted for this update to take effect.<\/p>\n
5. Bugs fixed (https:\/\/bugzilla.redhat.com\/):<\/p>\n
1920471 – CVE-2020-0465 kernel: out of bounds write in hid-multitouch.c may lead to escalation of privilege
\n1920480 – CVE-2020-0466 kernel: use after free in eventpoll.c may lead to escalation of privilege
\n1964139 – CVE-2021-3564 kernel: double free in bluetooth subsystem when the HCI device initialization fails
\n1966578 – CVE-2021-3573 kernel: use-after-free in function hci_sock_bound_ioctl()
\n1999544 – CVE-2021-3752 kernel: possible use-after-free in bluetooth module
\n2031930 – CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
\n2034813 – CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
\n2042404 – CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
\n2044809 – CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation<\/p>\n
6. Package List:<\/p>\n
Red Hat Enterprise Linux for Real Time for NFV (v. 7):<\/p>\n
Source:
\nkernel-rt-3.10.0-1160.59.1.rt56.1200.el7.src.rpm<\/p>\n
noarch:
\nkernel-rt-doc-3.10.0-1160.59.1.rt56.1200.el7.noarch.rpm<\/p>\n
x86_64:
\nkernel-rt-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-kvm-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-kvm-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debuginfo-common-x86_64-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-kvm-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-kvm-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-kvm-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-kvm-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm<\/p>\n
Red Hat Enterprise Linux for Real Time (v. 7):<\/p>\n
Source:
\nkernel-rt-3.10.0-1160.59.1.rt56.1200.el7.src.rpm<\/p>\n
noarch:
\nkernel-rt-doc-3.10.0-1160.59.1.rt56.1200.el7.noarch.rpm<\/p>\n
x86_64:
\nkernel-rt-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debug-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-debuginfo-common-x86_64-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-debuginfo-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm
\nkernel-rt-trace-devel-3.10.0-1160.59.1.rt56.1200.el7.x86_64.rpm<\/p>\n
These packages are GPG signed by Red Hat for security. Our key and
\ndetails on how to verify the signature are available from
\nhttps:\/\/access.redhat.com\/security\/team\/key\/<\/p>\n
7. References:<\/p>\n
https:\/\/access.redhat.com\/security\/cve\/CVE-2020-0465
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2020-0466
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-0920
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-3564
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-3573
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-3752
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-4155
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2022-0330
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2022-22942
\nhttps:\/\/access.redhat.com\/security\/updates\/classification\/#important<\/p>\n
8. Contact:<\/p>\n
The Red Hat security contact is <secalert@redhat.com>. More contact
\ndetails at https:\/\/access.redhat.com\/security\/team\/contact\/<\/p>\n
Copyright 2022 Red Hat, Inc.
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—–BEGIN PGP SIGNED MESSAGE—– Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:0622-01 Product: Red Hat Enterprise Linux Advisory URL: https:\/\/access.redhat.com\/errata\/RHSA-2022:0622 Issue date: 2022-02-22 CVE Names: CVE-2020-0465 CVE-2020-0466 CVE-2021-0920 CVE-2021-3564 CVE-2021-3573 CVE-2021-3752 CVE-2021-4155 CVE-2022-0330 CVE-2022-22942 ===================================================================== 1. Summary: An update for kernel-rt is now available for …<\/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-21027","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21027","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=21027"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21027\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=21027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=21027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=21027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}