Issued:

2022-09-20

Updated:

2022-09-20

RHSA-2022:6582 - Important: kernel-rt security and bug fix update

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel-rt 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

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: heap overflow in nft_set_elem_init() (CVE-2022-34918)

• kernel: vulnerability of buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)

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 latest RHEL-9.0.z3 Batch (BZ#2119577)

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

Updated Packages

• kernel-rt-debug-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-modules-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-modules-extra-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-kvm-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debuginfo-common-x86_64-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-debuginfo-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-devel-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-modules-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-modules-extra-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-devel-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-core-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debug-core-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-debuginfo-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm
• kernel-rt-5.14.0-70.26.1.rt21.98.el9_0.src.rpm
• kernel-rt-kvm-5.14.0-70.26.1.rt21.98.el9_0.x86_64.rpm

Fixes

• This content is not included.BZ - 2096178
• This content is not included.BZ - 2104423

CVEs

• CVE-2022-2078
• CVE-2022-34918

References

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

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.