PT-2024-9021 · Linux+5 · Linux Kernel+5
Ivan Avdeev
·
Published
2024-05-30
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Updated
2025-03-28
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CVE-2024-36895
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 versions prior to 6.6.37
Description:
The issue is related to a buffer size problem when parsing configfs lists in the uvc gadget support on 32-bit platforms. A helper function
uvcg iter item entries() was introduced to aid with parsing lists of items on configfs attributes stores. However, this function was changed to allocate a variably sized temporary buffer on the heap but wasn't properly updated to check for the maximum buffer size using the computed size instead of the sizeof() operator. As a result, the maximum item size was too small for some UVC configfs attributes, such as dwFrameInteval, which usually has 6-digit item values.Recommendations:
To resolve the issue, update the Linux kernel to version 6.6.37 or later.
As a temporary workaround, consider restricting access to the vulnerable
uvcg iter item entries() function until a patch is available.Exploit
Fix
Memory Corruption
Buffer Overflow
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Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu