RHSA-2023:0979: Important: kernel-rt security and bug fix update
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 caused by l2capreassemblesdu() in net/bluetooth/l2capcore.c (CVE-2022-3564) kernel: stack overflow in doprocdointvec and procskipspaces (CVE-2022-4378) kernel: use-after-free in nfs42sscopen() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379) kernel: Netfilter integer overflow vulnerability in nftpayloadcopyvlan (CVE-2023-0179) kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873) 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-9.1.z2 Batch (BZ#2160463)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2023:0979?
The severity of RHSA-2023:0979 is categorized based on the potential impact of the identified vulnerabilities.
How do I fix RHSA-2023:0979?
To fix RHSA-2023:0979, upgrade to kernel-rt version 5.14.0-162.18.1.rt21.181.el9_1 or later.
What vulnerabilities are addressed in RHSA-2023:0979?
RHSA-2023:0979 addresses a use-after-free vulnerability identified as CVE-2022-3564.
Which packages are affected by RHSA-2023:0979?
Affected packages include kernel-rt, kernel-rt-core, and their related debug and development packages.
What systems are impacted by RHSA-2023:0979?
RHSA-2023:0979 impacts systems utilizing the Real Time Linux Kernel on the specified version.