CVE-2024-36016

Advisory lineage Upstream: 0 Downstream: 41
Modified
Published: 29 May 2024, 18:46
Last modified:11 May 2026, 20:15

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.7 HIGH
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 May 2024, 18:46
Published
Vulnerability first disclosed
11 May 2026, 20:15
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

EPSS Trends

Current EPSS score: 0.02%• Percentile: 4%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux

    ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 9513d4148950b05bc99fa7314dc883cc0e1605e5 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < b229bc6c6ea9fe459fc3fa94fd0a27a2f32aca56 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 0fb736c9931e02dbc7d9a75044c8e1c039e50f04 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 4c267110fc110390704cc065edb9817fdd10ff54 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 46f52c89a7e7d2691b97a9728e4591d071ca8abc | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 774d83b008eccb1c48c14dc5486e7aa255731350 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < f126ce7305fe88f49cdabc6db4168b9318898ea3 | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < b890d45aaf02b564e6cae2d2a590f9649330857d | ≥ e1eaea46bb4020b38a141b84f88565d4603f8dd0, < 47388e807f85948eefc403a8a5fdc5b406a65d5a | 2.6.35

  • linux•linux_kernel

    ≥ 2.6.35, < 4.19.316 | ≥ 4.20, < 5.4.278 | ≥ 5.5, < 5.10.219 | ≥ 5.11, < 5.15.161 | ≥ 5.16, < 6.1.93 | ≥ 6.2, < 6.6.33 | ≥ 6.7, < 6.8.12 | ≥ 6.9, < 6.9.3

References (10)