RHSA-2024:3461 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout (CVE-2024-26643)
• kernel: netfilter: nf_tables: disallow anonymous set with timeout flag (CVE-2024-26642)
• kernel: netfilter: nft_ct: sanitize layer 3 and 4 protocol number in custom expectations (CVE-2024-26673)
• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)
• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)
• kernel: cifs: fix underflow in parse_server_interfaces() (CVE-2024-26828)
• kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993)

Bug Fix(es):

• lan78xx changes for 9.2.z, to fix link speed change exception and other bug fixes (JIRA:RHEL-34926)

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

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

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.2 x86_64
• Red Hat Enterprise Linux Server - AUS 9.2 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.2 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.2 ppc64le
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.2 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.2 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.2 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.2 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.2 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x

Fixes

• BZ - 2270879 - CVE-2024-26643 kernel: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout
• BZ - 2270881 - CVE-2024-26642 kernel: netfilter: nf_tables: disallow anonymous set with timeout flag
• BZ - 2272816 - CVE-2024-26673 kernel: netfilter: nft_ct: sanitize layer 3 and 4 protocol number in custom expectations
• BZ - 2273278 - CVE-2024-26735 kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref
• BZ - 2273423 - CVE-2024-26804 kernel: net: ip_tunnel: prevent perpetual headroom growth
• BZ - 2275600 - CVE-2024-26828 kernel: cifs: fix underflow in parse_server_interfaces()
• BZ - 2278314 - CVE-2024-26993 kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection()

CVEs

• CVE-2024-26642
• CVE-2024-26643
• CVE-2024-26673
• CVE-2024-26735
• CVE-2024-26804
• CVE-2024-26828
• CVE-2024-26993

References

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