RHSA-2023:1566: 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: stack overflow in doprocdointvec and procskipspaces (CVE-2022-4378) ALSA: pcm: Move rwsem lock inside sndctlelemread to prevent UAF (CVE-2023-0266) kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386) 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): kernel panic on reboot due to a bug in meiwdt module (BZ#2139770) RHEL8: Practically limit "Dummy wait" workaround to old Intel systems (BZ#2142170) AMDSERVER 8.7: amdpstate driver incorrectly designed to load as default for Genoa (BZ#2151275) RHEL-8.8: Update RDMA core to Linux v6.0 (BZ#2161750) Kernel panic observed during VxFS module unload (BZ#2162763) Client not able to connect to rhel server: SYN is answered by chalange ACK and RST is ignored (BZ#2165587) RHEL8.4: s390/kexec: fix ipl report address for kdump (BZ#2166296) kvm-unit-test reports unhandled exception on AMD (BZ#2166362) Windows Server 2019 guest randomly pauses with "KVM: entry failed, hardware error 0x80000021" (BZ#2166368) Unable to get QinQ working with ConnectX-4 Lx in SR-IOV scenario (BZ#2166665) panic in fib6rulesuppress+0x22 with custom xdp prog involved in (BZ#2167602) net/mlx5e: Fix use-after-free when reverting termination table (BZ#2167640) RHEL 8.7: EEH injection failed to recover on Mellanox adapter. (BZ#2167645) mlx5: lag and sriov fixes (BZ#2167647) RHEL8.4: dasd: fix no record found for rawtrackaccess (BZ#2167776) GSS: Set of fixes in ceph kernel module to prevent OCS node kernel crash - blocklist the kclient when receiving corrupted snap trace (BZ#2168896) Azure RHEL8 scsi: storvsc: Fix swiotlb bounce buffer leak in confidential VM (BZ#2170228) fastisolatefreepages scans out of target zone (BZ#2170576) Backport Request for locking/rwsem commits (BZ#2170939) ipv6 traffic stop when an sriov vf have ipv6 address (BZ#2172550) Hyper-V RHEL8.8: Update MANA driver (BZ#2173103) Enhancement(s): Intel 8.8 FEAT SPR CPU: AMX: Improve the initfpstate setup code (BZ#2168384)
Affected Software
Remediation
Event History
Frequently Asked Questions
What vulnerabilities are addressed in RHSA-2023:1566?
RHSA-2023:1566 addresses a stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378) and an out-of-use-after-free vulnerability in ALSA: pcm.
How do I remediate the vulnerabilities listed in RHSA-2023:1566?
To remediate the vulnerabilities in RHSA-2023:1566, upgrade your kernel to version 4.18.0-425.19.2.el8_7 or later.
What is the severity of RHSA-2023:1566?
The vulnerabilities addressed in RHSA-2023:1566 are considered critical due to the potential for exploitation in system environments.
Which packages are affected by RHSA-2023:1566?
The packages affected by RHSA-2023:1566 include kernel, bpftool, and various kernel-modules among others.
Is there a need for immediate action regarding RHSA-2023:1566?
Yes, immediate action is recommended to mitigate the risks associated with the vulnerabilities in RHSA-2023:1566.