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====================================================================
\nRed Hat Security Advisory<\/p>\n
Synopsis: Important: kpatch-patch-4_18_0-147_58_1 security and bug fix update
\nAdvisory ID: RHSA-2022:0958-01
\nProduct: Red Hat Enterprise Linux
\nAdvisory URL: https:\/\/access.redhat.com\/errata\/RHSA-2022:0958
\nIssue date: 2022-03-17
\nCVE Names: CVE-2021-0920 CVE-2021-4028 CVE-2021-4083
\nCVE-2021-4155 CVE-2022-0330 CVE-2022-0492
\nCVE-2022-22942
\n====================================================================
\n1. Summary:<\/p>\n
An update for kpatch-patch-4_18_0-147_58_1 is now available for Red Hat
\nEnterprise Linux 8.1 Update Services for SAP Solutions.<\/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 BaseOS E4S (v. 8.1) – ppc64le, x86_64<\/p>\n
3. Description:<\/p>\n
This is a kernel live patch module which is automatically loaded by the RPM
\npost-install script to modify the code of a running kernel.<\/p>\n
Security Fix(es):<\/p>\n
* kernel: Use After Free in unix_gc() which could result in a local
\nprivilege escalation (CVE-2021-0920)<\/p>\n
* kernel: use-after-free in RDMA listen() (CVE-2021-4028)<\/p>\n
* kernel: fget: check that the fd still exists after getting a ref to it
\n(CVE-2021-4083)<\/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: cgroups v1 release_agent feature may allow privilege escalation
\n(CVE-2022-0492)<\/p>\n
* kernel: failing usercopy allows for use-after-free exploitation
\n(CVE-2022-22942)<\/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
* Several kpatch CVEs needed for kernel-4.18.0-147.58.1.el8_1 (BZ#2064297)<\/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
5. Bugs fixed (https:\/\/bugzilla.redhat.com\/):<\/p>\n
2027201 – CVE-2021-4028 kernel: use-after-free in RDMA listen()
\n2029923 – CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
\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
\n2051505 – CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation<\/p>\n
6. Package List:<\/p>\n
Red Hat Enterprise Linux BaseOS E4S (v. 8.1):<\/p>\n
Source:
\nkpatch-patch-4_18_0-147_58_1-1-1.el8_1.src.rpm<\/p>\n
ppc64le:
\nkpatch-patch-4_18_0-147_58_1-1-1.el8_1.ppc64le.rpm
\nkpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.ppc64le.rpm
\nkpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.ppc64le.rpm<\/p>\n
x86_64:
\nkpatch-patch-4_18_0-147_58_1-1-1.el8_1.x86_64.rpm
\nkpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.x86_64.rpm
\nkpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.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-2021-0920
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-4028
\nhttps:\/\/access.redhat.com\/security\/cve\/CVE-2021-4083
\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-2022-0492
\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: kpatch-patch-4_18_0-147_58_1 security and bug fix update Advisory ID: RHSA-2022:0958-01 Product: Red Hat Enterprise Linux Advisory URL: https:\/\/access.redhat.com\/errata\/RHSA-2022:0958 Issue date: 2022-03-17 CVE Names: CVE-2021-0920 CVE-2021-4028 CVE-2021-4083 CVE-2021-4155 CVE-2022-0330 CVE-2022-0492 CVE-2022-22942 ==================================================================== 1. Summary: An update for kpatch-patch-4_18_0-147_58_1 is now available for Red Hat …<\/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-21904","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21904","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=21904"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21904\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=21904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=21904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=21904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}