PT-2023-4326 · Linux+7 · Linux Kernel+7
Maxim Suhanov
·
Published
2023-07-13
·
Updated
2024-11-21
·
CVE-2023-4273
CVSS v3.1
6.7
Medium
| Vector | AV:L/AC:L/PR:H/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
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack. The vulnerability is related to the
exfat get uniname from ext entry() function in the fs/exfat/dir.c module, which is associated with accessing memory beyond the allocated buffer.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Stack Overflow
Memory Corruption
Out of bounds Read
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu