RHSA-2023:1202: Important: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.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) ALSA: pcm: Move rwsem lock inside sndctlelemread to prevent UAF (CVE-2023-0266) kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269) 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): RHEL9:[P10] With Guest Secure Boot and lockdown enabled, DLPAR operations can't be done (Rainier) (BZ#2107480) [RHEL 9.0] LTP Test failure and crash at fork14 on Sapphire Rapids Platinum 8280+ (BZ#2133084) RHEL9.0 - boot: Add secure boot trailer (BZ#2151529) 'date' command shows wrong time in nested KVM s390x guest (BZ#2158816) Kernel FIPS-140-3 requirements - part 3 - AES-XTS (BZ#2160176) RHEL 9.0.0 soft quota cannot exceed more the 5 warns which breaks timer functionality (BZ#2164263) In FIPS mode, the kernel should reject SHA-224, SHA-384, SHA-512-224, and SHA-512-256 as hashes for hash-based DRBGs, or provide an indicator after 2023-05-16 (BZ#2165131) [RHEL 9] FIPS: deadlock between PID 1 and "modprobe crypto-jitterentropyrng" at boot, preventing system to boot. (BZ#2167762) Enhancement(s): [Intel 9.2 FEAT] [SPR] CPU: AMX: Improve the initfpstate setup code (BZ#2168383)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2023:1202?
The severity of RHSA-2023:1202 is classified as important due to the potential impact of the kernel vulnerabilities.
How do I fix RHSA-2023:1202?
To fix RHSA-2023:1202, update the kernel packages to version 5.14.0-70.49.1.el9_0 or later.
What vulnerabilities are addressed in RHSA-2023:1202?
RHSA-2023:1202 addresses a use-after-free vulnerability in Bluetooth handling (CVE-2022-3564) and a stack overflow vulnerability.
Which software packages are affected by RHSA-2023:1202?
The affected packages include kernel, kernel-core, kernel-debug, bpftool, and other related packages provided by Red Hat.
Is there a specific kernel version I need to upgrade to for RHSA-2023:1202?
Yes, you need to upgrade to kernel version 5.14.0-70.49.1.el9_0 to mitigate the vulnerabilities addressed in RHSA-2023:1202.