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Red Hat Product Errata RHSA-2022:0958 - Security Advisory
Issued:
2022-03-17
Updated:
2022-03-17

RHSA-2022:0958 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kpatch-patch-4_18_0-147_58_1 security and bug fix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kpatch-patch-4_18_0-147_58_1 is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

  • kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)
  • kernel: use-after-free in RDMA listen() (CVE-2021-4028)
  • kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)
  • kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)
  • kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)
  • kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)
  • kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • Several kpatch CVEs needed for kernel-4.18.0-147.58.1.el8_1 (BZ#2064297)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1 x86_64

Fixes

  • BZ - 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
  • BZ - 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
  • BZ - 2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
  • BZ - 2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
  • BZ - 2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
  • BZ - 2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
  • BZ - 2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation

CVEs

  • CVE-2021-0920
  • CVE-2021-4028
  • CVE-2021-4083
  • CVE-2021-4155
  • CVE-2022-0330
  • CVE-2022-0492
  • CVE-2022-22942

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1

SRPM
kpatch-patch-4_18_0-147_58_1-1-1.el8_1.src.rpm SHA-256: a6d56cc3059cb50a9cb86c246b60f7f8c90140aabf1bfc863478c419b435a25c
ppc64le
kpatch-patch-4_18_0-147_58_1-1-1.el8_1.ppc64le.rpm SHA-256: 9f996fbdd4f710ec5151dd15bb4345a91426089f2fcd98df18f780ab0c35bf9f
kpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.ppc64le.rpm SHA-256: f1e6724776230c946f093c87a9ca8764c96bff6ccc69b5099319a22de27118f3
kpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.ppc64le.rpm SHA-256: a112e3aa413595657970e0becd4490a383f4512bdaec8ca35b4d3b68d7b22843

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1

SRPM
kpatch-patch-4_18_0-147_58_1-1-1.el8_1.src.rpm SHA-256: a6d56cc3059cb50a9cb86c246b60f7f8c90140aabf1bfc863478c419b435a25c
x86_64
kpatch-patch-4_18_0-147_58_1-1-1.el8_1.x86_64.rpm SHA-256: 394199a7877f53f9bb126039ae3922fa38dd79a21849746cee2a8764498eaa60
kpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.x86_64.rpm SHA-256: 94c10c7459e0842b772a7280c118a778614928c449cecbb28928b11c38a199e6
kpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.x86_64.rpm SHA-256: e61323c7277a9fd0b2ea6e7969f6afd09e5cd9bd1bf0cbb87c10eaec41b27c6d

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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