CVE-2026-53016

high

Description

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.

References

https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a

https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2

https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9

https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a

https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4

https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3

https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd

https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4

Details

Source: Mitre, NVD

Published: 2026-06-24

Updated: 2026-06-24

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00176