tty: n_gsm: fix possible out-of-bounds in gsm0_receive() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.27 % · percentile 18 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://git.kernel.org/stable/c/9513d4148950b05bc99fa7314dc883cc0e1605e5
- https://git.kernel.org/stable/c/b229bc6c6ea9fe459fc3fa94fd0a27a2f32aca56
- https://git.kernel.org/stable/c/0fb736c9931e02dbc7d9a75044c8e1c039e50f04
- https://git.kernel.org/stable/c/4c267110fc110390704cc065edb9817fdd10ff54
- https://git.kernel.org/stable/c/46f52c89a7e7d2691b97a9728e4591d071ca8abc
- https://git.kernel.org/stable/c/774d83b008eccb1c48c14dc5486e7aa255731350
- https://git.kernel.org/stable/c/f126ce7305fe88f49cdabc6db4168b9318898ea3
- https://git.kernel.org/stable/c/b890d45aaf02b564e6cae2d2a590f9649330857d
- https://git.kernel.org/stable/c/47388e807f85948eefc403a8a5fdc5b406a65d5a
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2024-35826
- GCVE · GCVE-0-2024-36016
CERT-FR advisories
- CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0821 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0718 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0717 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0716 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0694 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0668 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0667 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0645 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0613 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0612 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0610 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0578 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0527 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0526 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0496 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.35 < 4.19.316cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.278cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.219cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.161cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.93cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.33cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.8.12cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.9 < 6.9.3
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < 9513d4148950b05bc99fa7314dc883cc0e1605e5 ; affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < b229bc6c6ea9fe459fc3fa94fd0a27a2f32aca56 ; affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < 0fb736c9931e02dbc7d9a75044c8e1c039e50f04 ; affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < 4c267110fc110390704cc065edb9817fdd10ff54 ; affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < 46f52c89a7e7d2691b97a9728e4591d071ca8abc ; affected e1eaea46bb4020b38a141b84f88565d4603f8dd0 < 774d83b008eccb1c48c14dc5486e7aa255731350 |
| Linux · Linux | affected 2.6.35 ; unaffected 0 < 2.6.35 ; unaffected 4.19.316 ≤ 4.19.* ; unaffected 5.4.278 ≤ 5.4.* ; unaffected 5.10.219 ≤ 5.10.* ; unaffected 5.15.161 ≤ 5.15.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |