RHSA-2024:5282 - Security Advisory

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 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.4 Telecommunications Update Service.

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: netfilter: nf_tables: honor table dormant flag from netdev release event path (CVE-2024-36005)
• kernel: net: CVE-2024-36971 kernel: UAF in network route management (CVE-2024-36971)
• kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502)
• kernel: NFSD: Fix the behavior of READ near OFFSET_MAX (CVE-2022-48827)
• kernel: NFSD: Fix ia_size underflow (CVE-2022-48828)
• kernel: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes (CVE-2022-48829)

Bug Fix(es):

• kernel-rt: update RT source tree to the latest RHEL-8.4.z Batch 27 (JIRA:RHEL-50526)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer 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 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 - 2281949 - CVE-2024-36005 kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path
• BZ - 2292331 - CVE-2024-36971 kernel: net: UAF in network route management
• BZ - 2297474 - CVE-2024-39502 kernel: ionic: fix use after netif_napi_del()
• BZ - 2298166 - CVE-2022-48827 kernel: NFSD: Fix the behavior of READ near OFFSET_MAX
• BZ - 2298167 - CVE-2022-48828 kernel: NFSD: Fix ia_size underflow
• BZ - 2298168 - CVE-2022-48829 kernel: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes

CVEs

• CVE-2022-48827
• CVE-2022-48828
• CVE-2022-48829
• CVE-2024-36005
• CVE-2024-36971
• CVE-2024-39502

References

• https://access.redhat.com/security/updates/classification/#important