PT-2024-8218 · Linux+3 · Linux Kernel+3
Tasos Sahanidis
·
Published
2022-09-07
·
Updated
2025-01-24
·
CVE-2022-48702
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to an out of bounds access in the
snd emu10k1 pcm channel alloc() function. The voice allocator sometimes begins allocating from near the end of the array and then wraps around, however snd emu10k1 pcm channel alloc() accesses the newly allocated voices as if it never wrapped around. This results in out of bounds access if the first voice has a high enough index so that first voice + requested voice count > NUM G (64). The more voices are requested, the more likely it is for this to occur. This was initially discovered using PipeWire, however it can be reproduced by calling aplay multiple times with 16 channels.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
Improper Validation of Array Index
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Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse