RHSA-2023:0951 - Security Advisory

Topic

An update for kernel 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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
• kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
• kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379)
• kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (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):

• RHEL 9.0: LTP Test failure and crash at fork14 on Sapphire Rapids Platinum 8280+ (BZ#2133083)
• RHEL 9.1 Extending NMI watchdog's timer during LPM (BZ#2140085)
• AMDSERVER 9.1: amdpstate driver incorrectly designed to load as default for Genoa (BZ#2151274)
• qla2xxx NVMe-FC: WARNING: CPU: 0 PID: 124072 at drivers/scsi/qla2xxx/qla_init.c:70 qla2xxx_rel_done_warning+0x25/0x30 [qla2xxx] (BZ#2152178)
• Regression: Kernel panic on Lenovo T480 with AH40 USB-C docking station (BZ#2153277)
• Scheduler Update (rhel9.2) (BZ#2153792)
• RHEL9.1, Nx_Gzip: nr_total_credits is not decremented when processing units are reduced by dlpar in shared mode. (FW1030 / DLPAR) (BZ#2154305)
• MSFT, MANA, NET Patch RHEL-9: Fix race on per-CQ variable napi_iperf panic fix (BZ#2155145)
• Azure vPCI RHEL-9 add the support of multi-MSI (BZ#2155459)
• Azure RHEL-9: VM Deployment Failures Patch Request (BZ#2155930)
• The 'date' command shows wrong time in nested KVM s390x guest (BZ#2158815)
• RHEL-9.2: Update NVMe driver to sync with upstream v6.0 (BZ#2161344)
• CEE cephfs: RHEL9 cephfs client crashing with RIP: 0010:netfs_rreq_unlock+0xef/0x380 [netfs] (BZ#2161418)
• block layer: update with upstream v6.0 (BZ#2162535)

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 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for x86_64 9 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x

Fixes

• BZ - 2119048 - CVE-2022-2873 kernel: an out-of-bounds vulnerability in i2c-ismt driver
• BZ - 2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c
• BZ - 2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces
• BZ - 2152807 - CVE-2022-4379 kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack
• BZ - 2161713 - CVE-2023-0179 kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan

CVEs

• CVE-2022-2873
• CVE-2022-3564
• CVE-2022-4378
• CVE-2022-4379
• CVE-2023-0179

References

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