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Red Hat Product Errata RHSA-2023:1008 - Security Advisory
Issued:
2023-02-28
Updated:
2023-02-28

RHSA-2023:1008 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kpatch-patch security 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 is now available for Red Hat Enterprise Linux 9.

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 caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
  • kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
  • kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379)
  • kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179)

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.

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 for x86_64 9 x86_64
  • Red Hat Enterprise Linux for Power, little endian 9 ppc64le

Fixes

  • BZ - 2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c
  • BZ - 2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces
  • BZ - 2152807 - CVE-2022-4379 kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack
  • BZ - 2161713 - CVE-2023-0179 kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan

CVEs

  • CVE-2022-3564
  • CVE-2022-4378
  • CVE-2022-4379
  • CVE-2023-0179

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 for x86_64 9

SRPM
kpatch-patch-5_14_0-162_12_1-1-1.el9_1.src.rpm SHA-256: cbdd657e5be1ba5a9b983cee139ca32a111a126ad866826fe8ffdb727e946ee5
kpatch-patch-5_14_0-162_6_1-1-2.el9_1.src.rpm SHA-256: 7b678d775bba90f0e91c2199b9450f9c3b88a4eb9d99c0c36226db0854b35ac2
x86_64
kpatch-patch-5_14_0-162_12_1-1-1.el9_1.x86_64.rpm SHA-256: 18a00d900875efcd41ef5a6e570bfab9c33f232b5f155dc5bc5fb46597afbfa7
kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.x86_64.rpm SHA-256: bfc817245af3ffb76f6d508cab863b25f77292b648a02a8112f9f4c922632513
kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.x86_64.rpm SHA-256: 95fa2d83654b3787ab7e28ba47f3c1e48f534d34cbf0db3cddf8da085e5ca3c5
kpatch-patch-5_14_0-162_6_1-1-2.el9_1.x86_64.rpm SHA-256: fa2750d9515a05a041fa3788495fb724120c5a7175b14da5fd01f4e4f9180db7
kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.x86_64.rpm SHA-256: 38753701a8f1310bdd89065666fe0c5f006fecda5d76788ac84ca0962d6488ad
kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.x86_64.rpm SHA-256: 0d708f9a1a1d02c27f835dde2ebf571b0c3ac61c7b079e5ab1c54ef442d786dd

Red Hat Enterprise Linux for Power, little endian 9

SRPM
kpatch-patch-5_14_0-162_12_1-1-1.el9_1.src.rpm SHA-256: cbdd657e5be1ba5a9b983cee139ca32a111a126ad866826fe8ffdb727e946ee5
kpatch-patch-5_14_0-162_6_1-1-2.el9_1.src.rpm SHA-256: 7b678d775bba90f0e91c2199b9450f9c3b88a4eb9d99c0c36226db0854b35ac2
ppc64le
kpatch-patch-5_14_0-162_12_1-1-1.el9_1.ppc64le.rpm SHA-256: a689a8ce2a6d9893e41ac826f66ec9b74a9f9784e3286326f25a6d6bfd73aea7
kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.ppc64le.rpm SHA-256: b319bf5de6361065303a701f96e0b6201be25ead3ad2eff6c804076eff8a2900
kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.ppc64le.rpm SHA-256: 28d5f5d0230c471251b857ab845b257e96a72913975f63cfa20cb25cbf308d6f
kpatch-patch-5_14_0-162_6_1-1-2.el9_1.ppc64le.rpm SHA-256: 85f80fd9a2cd92d1fd9b5b73a124916ba79e730fe8b58ea2ee99c1987bf6a44c
kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.ppc64le.rpm SHA-256: 6c717da5b1c492491e8fa19ac6a7ca944d1a51ece24f79eb1f200354933d26f1
kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.ppc64le.rpm SHA-256: 3da748cb6c9d4f7335535789045898961bb0f135894167e6ad3d7111ad4041d6

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

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