s390/zcrypt: Validate length for CCA AES cipher key requests (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests cca_cipher2protkey() derives the copy length for the CPRB parameter block directly from the length field in the key token. Reject the request early if the token length exceeds the available space in the parameter block.
Weaknesses (CWE)
- CWE-120 — Buffer Copy without Checking Size of Input
References
- https://git.kernel.org/stable/c/be037204e4f595e4bd2159acda146677a1dc6342
- https://git.kernel.org/stable/c/4e500ecb6704d879f9c2417c2ed6faba595015ca
- https://git.kernel.org/stable/c/7f9e5a3dbb14a9b321a1dfa30390402c673f82dc
- https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778
- https://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23
- https://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b
- https://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65
- https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a
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 7.8 | 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) |
European references
- ENISA EUVD · EUVD-2026-57921
- GCVE · GCVE-0-2026-68452
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1090 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < be037204e4f595e4bd2159acda146677a1dc6342 ; affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < 4e500ecb6704d879f9c2417c2ed6faba595015ca ; affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < 7f9e5a3dbb14a9b321a1dfa30390402c673f82dc ; affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < 406b317ea2b501f6f5eca1264293c9399a73a778 ; affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < 4fc46deceda076d429ef3fab2ccf8d96629ebd23 ; affected 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd < ad93a1f1a45652478c0cf4eb029114e03af57f3b |
| Linux · Linux | affected 5.4 ; unaffected 0 < 5.4 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.* |
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 |