CVE-2024-36016

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Source
https://cve.org/CVERecord?id=CVE-2024-36016
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36016.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-36016
Downstream
Related
Published
2024-05-29T18:46:34.778Z
Modified
2026-03-14T12:34:06.773696Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
Details

In the Linux kernel, the following vulnerability has been resolved:

tty: ngsm: fix possible out-of-bounds in gsm0receive()

Assuming the following: - side A configures the ngsm 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 gsm0receive() 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 MAXMRU in gsm0receive() 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36016.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e1eaea46bb4020b38a141b84f88565d4603f8dd0
Fixed
9513d4148950b05bc99fa7314dc883cc0e1605e5
Fixed
b229bc6c6ea9fe459fc3fa94fd0a27a2f32aca56
Fixed
0fb736c9931e02dbc7d9a75044c8e1c039e50f04
Fixed
4c267110fc110390704cc065edb9817fdd10ff54
Fixed
46f52c89a7e7d2691b97a9728e4591d071ca8abc
Fixed
774d83b008eccb1c48c14dc5486e7aa255731350
Fixed
f126ce7305fe88f49cdabc6db4168b9318898ea3
Fixed
b890d45aaf02b564e6cae2d2a590f9649330857d
Fixed
47388e807f85948eefc403a8a5fdc5b406a65d5a

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36016.json"