CVE-2023-6531
Kernel: gc's deletion of an skb races with unix_stream_read_generic() leading to uaf
- State
- Published
- Severity
- 7.0 High
- Published
- Jan 21, 2024
- Updated
- Nov 1, 2026
- Reserved
- Dec 5, 2023
Description
A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.0 High | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat |
References
- RHSA-2024:2394vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-6531vdb-entry
- RHBZ#2253034issue-tracking
- https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com/
- http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
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