media: av7110: prevent underflow in write_ts_to_decoder() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.16 % · centile 5 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Deferred
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Description
In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.
Références
- https://git.kernel.org/stable/c/6680af5be9f08d830567e9118f76d3e64684db8f
- https://git.kernel.org/stable/c/6606e2404ee9e20a3ae5b42fc3660d41b739ed3e
- https://git.kernel.org/stable/c/620b983589e0223876bf1463b01100a9c67b56ba
- https://git.kernel.org/stable/c/86ba65e5357bfbb6c082f68b265a292ee1bdde1d
- https://git.kernel.org/stable/c/ca4ce92e3ec9fd3c7c936b912b95c53331d5159c
- https://git.kernel.org/stable/c/423350af9e27f005611bd881b1df2cab66de943d
- https://git.kernel.org/stable/c/77eeb4732135c18c2fdfab80839645b393f3e774
- https://git.kernel.org/stable/c/7b93ab60fe9ed04be0ff155bc30ad39dea23e22b
- https://git.kernel.org/stable/c/eed9496a0501357aa326ddd6b71408189ed872eb
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2023-60520
- GCVE · GCVE-0-2023-54284
Avis du CERT-FR
- CERTFR-2026-AVI-0225 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0108 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < 6680af5be9f08d830567e9118f76d3e64684db8f ; affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < 6606e2404ee9e20a3ae5b42fc3660d41b739ed3e ; affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < 620b983589e0223876bf1463b01100a9c67b56ba ; affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < 86ba65e5357bfbb6c082f68b265a292ee1bdde1d ; affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < ca4ce92e3ec9fd3c7c936b912b95c53331d5159c ; affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf < 423350af9e27f005611bd881b1df2cab66de943d |
| Linux · Linux | affected 2.6.31 ; unaffected 0 < 2.6.31 ; unaffected 4.14.315 ≤ 4.14.* ; unaffected 4.19.283 ≤ 4.19.* ; unaffected 5.4.243 ≤ 5.4.* ; unaffected 5.10.211 ≤ 5.10.* |
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 |