- Issued:
- 2023-11-28
- Updated:
- 2023-11-28
RHSA-2023:7554 - Security Advisory
Synopsis
Important: kpatch-patch security update
Type/Severity
Security Advisory: Important
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.
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
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
- kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)
- kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812)
- kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)
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.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 8 x86_64
- Red Hat Enterprise Linux for Power, little endian 8 ppc64le
Fixes
- BZ - 2224048 - CVE-2023-3812 kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags
- BZ - 2240249 - CVE-2023-2163 kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe
- BZ - 2241924 - CVE-2023-5178 kernel: use after free in nvmet_tcp_free_crypto in NVMe
Red Hat Enterprise Linux for x86_64 8
SRPM | |
---|---|
kpatch-patch-4_18_0-513_5_1-1-1.el8_9.src.rpm | SHA-256: f725aee757e8f7e356a328bc1fe0f6452b88fc902ab6bb471e667e34325ac597 |
x86_64 | |
kpatch-patch-4_18_0-513_5_1-1-1.el8_9.x86_64.rpm | SHA-256: 28ef7222cc3cf793a2750d9191a14b95460f4c55e782be0f7f894bde89ab817d |
kpatch-patch-4_18_0-513_5_1-debuginfo-1-1.el8_9.x86_64.rpm | SHA-256: b18d248fa8d8c60c3738df630a73e9e150e918540f5c3e3f18eaf847c48b0e6e |
kpatch-patch-4_18_0-513_5_1-debugsource-1-1.el8_9.x86_64.rpm | SHA-256: 90991596d1dd26ee369859a8754a95d0fe0b2b0c7985830086071129d83991bd |
Red Hat Enterprise Linux for Power, little endian 8
SRPM | |
---|---|
kpatch-patch-4_18_0-513_5_1-1-1.el8_9.src.rpm | SHA-256: f725aee757e8f7e356a328bc1fe0f6452b88fc902ab6bb471e667e34325ac597 |
ppc64le | |
kpatch-patch-4_18_0-513_5_1-1-1.el8_9.ppc64le.rpm | SHA-256: e5e4b48e66443ab48a95233cb1ca2b5376a346a59fe92e1fab6a49f74a3b4b8a |
kpatch-patch-4_18_0-513_5_1-debuginfo-1-1.el8_9.ppc64le.rpm | SHA-256: 8c49e78485e19737cdc6ad831e5caa0f3a5d2939a5ff3bbabf10cf8b03fed171 |
kpatch-patch-4_18_0-513_5_1-debugsource-1-1.el8_9.ppc64le.rpm | SHA-256: 7d90ae5abca3a03cb50dea6cac5fdc003e94bf55a4ba5cf6e884cd1ad1531889 |
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.