CVE-2026-53016
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer. Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4Patch
- https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bdPatch
- https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3Patch
- https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4Patch
- https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9aPatch
- https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9Patch
- https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2Patch
- https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6aPatch