PT-2023-9467 · Linux+4 · Linux Kernel+4
Sili Luo
·
Published
2023-10-10
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Updated
2025-01-27
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CVE-2023-52502
CVSS v2.0
6.8
Medium
| Vector | AV:L/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a race condition in the NFC component of the Linux kernel, specifically in the
nfc llcp sock get() and nfc llcp sock get sn() functions. This can lead to a Use After Free (UAF) condition, potentially allowing an attacker to execute arbitrary code with elevated privileges. The problem occurs when getting a reference on the socket found in a lookup while holding a lock, which should happen before releasing the lock. The nfc llcp recv snl() function also needs to ensure that the socket found by nfc llcp sock from sn() does not disappear.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
Race Condition
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Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse
Ubuntu