CVE-2022-49288

EUVD-2022-54938
In the Linux kernel, the following vulnerability has been resolved:

ALSA: pcm: Fix races among concurrent prealloc proc writes

We have no protection against concurrent PCM buffer preallocation
changes via proc files, and it may potentially lead to UAF or some
weird problem.  This patch applies the PCM open_mutex to the proc
write operation for avoiding the racy proc writes and the PCM stream
open (and further operations).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 7%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
< 4.14.279
linuxlinux_kernel
4.15 ≤
𝑥
< 4.19.243
linuxlinux_kernel
4.20 ≤
𝑥
< 5.4.193
linuxlinux_kernel
5.5 ≤
𝑥
< 5.10.109
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.32
linuxlinux_kernel
5.16 ≤
𝑥
< 5.16.18
linuxlinux_kernel
5.17 ≤
𝑥
< 5.17.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.123-1
fixed
bookworm (security)
6.1.128-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.234-1
fixed
sid
6.12.16-1
fixed
trixie
6.12.12-1
fixed
Common Weakness Enumeration
References
https://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7
https://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d
https://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6
https://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3
https://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2
https://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a
https://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b
https://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d