CVE-2022-49044
dm integrity: fix memory corruption when tag_size is less than digest size
En bref
- Source
- NVD
- EPSS
- EPSS 0.28 % · centile 21 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: dm integrity: fix memory corruption when tag_size is less than digest size It is possible to set up dm-integrity in such a way that the "tag_size" parameter is less than the actual digest size. In this situation, a part of the digest beyond tag_size is ignored. In this case, dm-integrity would write beyond the end of the ic->recalc_tags array and corrupt memory. The corruption happened in integrity_recalc->integrity_sector_checksum->crypto_shash_final. Fix this corruption by increasing the tags array so that it has enough padding at the end to accomodate the loop in integrity_recalc() being able to write a full digest size for the last member of the tags array.
Faiblesses (CWE)
- CWE-787 — Écriture hors limites
Références
- https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0
- https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf
- https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc
- https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123
- https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9
- https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| 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 · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2022-55159
- GCVE · GCVE-0-2022-49044
Avis du CERT-FR
- CERTFR-2025-AVI-0449 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.12 < 4.19.240cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.190cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.112cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.35cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.17.4cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected a3fcf7253139609bf9ff901fbf955fba047e75dd < 6a95d91c0b315c965198f6ab7dec7c94129e17e0 ; affected a3fcf7253139609bf9ff901fbf955fba047e75dd < 7f84c937222944c03f4615ca4742df6bed0e5adf ; affected a3fcf7253139609bf9ff901fbf955fba047e75dd < cd02b2687d66f0a8e716384de4b9a0671331f1dc ; affected a3fcf7253139609bf9ff901fbf955fba047e75dd < 6b4bf97587ef6c1927a78934b700204920655123 ; affected a3fcf7253139609bf9ff901fbf955fba047e75dd < 4d485cf9b609709e45d5113e6e2b1b01254b2fe9 ; affected a3fcf7253139609bf9ff901fbf955fba047e75dd < 08c1af8f1c13bbf210f1760132f4df24d0ed46d6 |
| Linux · Linux | affected 4.19 ; unaffected 0 < 4.19 ; unaffected 4.19.240 ≤ 4.19.* ; unaffected 5.4.190 ≤ 5.4.* ; unaffected 5.10.112 ≤ 5.10.* ; unaffected 5.15.35 ≤ 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 |