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Red Hat Product Errata RHSA-2023:4961 - Security Advisory
Issued:
2023-09-05
Updated:
2023-09-05

RHSA-2023:4961 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel-rt 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 kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 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

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
  • kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
  • kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
  • kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)
  • kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)
  • kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
  • Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)
  • kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)

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):

  • kernel-rt: update RT source tree to the RHEL-8.4.z19 source tree (BZ#2222004)
  • pods get restarted due to failed probes (BZ#2227240)

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

The system must be rebooted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.4 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.4 x86_64

Fixes

  • BZ - 2187308 - CVE-2023-2002 Kernel: bluetooth: Unauthorized management command execution
  • BZ - 2187439 - CVE-2023-2124 kernel: OOB access in the Linux kernel's XFS subsystem
  • BZ - 2188470 - CVE-2023-1829 kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter
  • BZ - 2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests
  • BZ - 2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
  • BZ - 2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb
  • BZ - 2220892 - CVE-2023-35001 kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
  • BZ - 2225275 - CVE-2023-4004 kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()

CVEs

  • CVE-2023-1829
  • CVE-2023-2002
  • CVE-2023-2124
  • CVE-2023-3090
  • CVE-2023-3390
  • CVE-2023-4004
  • CVE-2023-35001
  • CVE-2023-35788

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 Real Time - Telecommunications Update Service 8.4

SRPM
kernel-rt-4.18.0-305.103.1.rt7.178.el8_4.src.rpm SHA-256: 491727a011a8d138419071995accee2995df5ac8f9bd6b5c3caa9ce90cdfd27f
x86_64
kernel-rt-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: e11cf657e8d3cc64c49a292c3abb199f794cbedeb759b36279b235f6411ab16f
kernel-rt-core-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 2c912b2b8b17516354efdef6d6353e349e39c73f225140c2a6e380367dc1c256
kernel-rt-debug-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 57939d3b58c061273b77cacfce0a0ad5902f3310cf78af164976361ee92770c1
kernel-rt-debug-core-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 67a37eab5212f4ae256b8d6e99de8e5d8ccba2b4bb8ba77e5376718dd5c7b249
kernel-rt-debug-debuginfo-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 21b303f7972894432237f061d2e93ec138441f55a54dc95101eadd4e3b43d089
kernel-rt-debug-devel-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 40eff6a1fffa1fdea6c36ff78053398fe841d912b836aad0a5c70c29c100d320
kernel-rt-debug-modules-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 0621b23af3ed11ac7e1fd7254c1f406aba8b51b12e3855b868f6eb4b6f49d3f4
kernel-rt-debug-modules-extra-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 2ad1774be42722a4285947af8edb2625b17411520be63ee07772b820ed1e79d5
kernel-rt-debuginfo-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 483d481e2de432de725c57fde4f3253a098add95b7a40716166a7cff59b71274
kernel-rt-debuginfo-common-x86_64-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: b83ed552658046f391e84c83b442c904eedce556a2f41e08ed97295b2ef843d4
kernel-rt-devel-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: aa32597d3dc66f83b1bb00db4d9fea2afc97da4ccb2852e34c2bc235b2435398
kernel-rt-modules-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 79ede008d506a1e1efb7861cdb857d98bbf921145a1078f3e76fa9b458d7e486
kernel-rt-modules-extra-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 19400294dec535ac1d1b3bc5f435763ba4f76001780911da08749ad44fecd69b

Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.4

SRPM
kernel-rt-4.18.0-305.103.1.rt7.178.el8_4.src.rpm SHA-256: 491727a011a8d138419071995accee2995df5ac8f9bd6b5c3caa9ce90cdfd27f
x86_64
kernel-rt-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: e11cf657e8d3cc64c49a292c3abb199f794cbedeb759b36279b235f6411ab16f
kernel-rt-core-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 2c912b2b8b17516354efdef6d6353e349e39c73f225140c2a6e380367dc1c256
kernel-rt-debug-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 57939d3b58c061273b77cacfce0a0ad5902f3310cf78af164976361ee92770c1
kernel-rt-debug-core-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 67a37eab5212f4ae256b8d6e99de8e5d8ccba2b4bb8ba77e5376718dd5c7b249
kernel-rt-debug-debuginfo-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 21b303f7972894432237f061d2e93ec138441f55a54dc95101eadd4e3b43d089
kernel-rt-debug-devel-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 40eff6a1fffa1fdea6c36ff78053398fe841d912b836aad0a5c70c29c100d320
kernel-rt-debug-kvm-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 9fec8540bd7eea4ce08875683dd0a88179f93f94c4f73105674b6baddefff7c5
kernel-rt-debug-modules-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 0621b23af3ed11ac7e1fd7254c1f406aba8b51b12e3855b868f6eb4b6f49d3f4
kernel-rt-debug-modules-extra-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 2ad1774be42722a4285947af8edb2625b17411520be63ee07772b820ed1e79d5
kernel-rt-debuginfo-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 483d481e2de432de725c57fde4f3253a098add95b7a40716166a7cff59b71274
kernel-rt-debuginfo-common-x86_64-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: b83ed552658046f391e84c83b442c904eedce556a2f41e08ed97295b2ef843d4
kernel-rt-devel-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: aa32597d3dc66f83b1bb00db4d9fea2afc97da4ccb2852e34c2bc235b2435398
kernel-rt-kvm-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: fca551782a518fd4680015eb5e0c8d3980130418e1a9b285eb86a42d4143e30f
kernel-rt-modules-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 79ede008d506a1e1efb7861cdb857d98bbf921145a1078f3e76fa9b458d7e486
kernel-rt-modules-extra-4.18.0-305.103.1.rt7.178.el8_4.x86_64.rpm SHA-256: 19400294dec535ac1d1b3bc5f435763ba4f76001780911da08749ad44fecd69b

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

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