DEBIAN-CVE-2024-36016

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2024-36016
Published: 29 May 2024, 19:15
Last modified:28 Apr 2026, 20:28

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.7 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 May 2024, 19:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:28
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size.

CVSS Metrics

  • v3.1•HIGH•Score: 7.7CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Systems

  • debian•linux

    < 5.10.221-1 | < 6.1.94-1 | < 6.8.12-1 | < 6.8.12-1

References (1)