CVE-2023-6531CWE-362

CVE-2023-6531

High · published January 21, 2024

CVSS v3.1
7.0
EPSS
0%
Percentile
12.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00224 · 12.3th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2024-01-21T15:15Z
Affected products (6)
ProductVersionsFixed in
linux/linux_kernel< 6.76.7
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
redhat/enterprise_linuxall versions—
References (10)
https://access.redhat.com/errata/RHSA-2024:2394 · [email protected]https://access.redhat.com/security/cve/CVE-2023-6531 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2253034 · [email protected]https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com/ · [email protected]http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2394 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-6531 · af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2253034 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html · af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com/ · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 21 JAN 10:01Z
    Kernel: gc's deletion of an skb races with unix_stream_read_generic() leading to uaf
    cvelistv5