PT-2024-9017 · Linux+9 · Linux Kernel+9
Published
2024-05-29
·
Updated
2025-09-29
·
CVE-2024-36016
CVSS v3.1
7.7
High
| Vector | AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to a possible out-of-bounds condition in the
gsm0 receive() function. This can occur when side A configures the n gsm in basic option mode, and side B sends a header with a data length of 1, then side A switches to advanced option mode, and side B sends 2 data bytes that exceed gsm->len. The reason for this is that gsm->len is not used in advanced option mode. Additionally, when side A switches back to basic option mode, and side B continues sending data, gsm0 receive() can write past gsm->buf because neither gsm->state nor gsm->len has been reset after reconfiguration. The fix involves changing the comparison from equal to less than for gsm->count and gsm->len, and adding upper limit checks against the constant MAX MRU in gsm0 receive() and gsm1 receive() to prevent memory corruption of gsm->len and gsm->mru.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
Memory Corruption
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu