CVE-2026-64306

medium

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: drbg - Fix returning success on failure in CTR_DRBG drbg_ctr_generate() sometimes returns success when it fails, leaving the output buffer uninitialized. Fix it.

References

https://git.kernel.org/stable/c/cc42fb40171c249bb859071d81b4eb007398a0bc

https://git.kernel.org/stable/c/bbbac12083eff489b35d848332f0dff311131344

https://git.kernel.org/stable/c/a9e886f73dd717027028bb7e3bbca93601ecdfc7

https://git.kernel.org/stable/c/7b03312491f9fe6ba4d60c4023e7e61d2d1fed96

https://git.kernel.org/stable/c/75597e8774f319152744d24e0683d9393540a951

https://git.kernel.org/stable/c/39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b

https://git.kernel.org/stable/c/23b8b188cb32e5531d0f8d3af9506f8959cb369e

https://git.kernel.org/stable/c/074db6db03a0aaa78f05ca9d4838053713796665

Details

Source: Mitre, NVD

Published: 2026-07-25

Updated: 2026-07-25

Risk Information

CVSS v2

Base Score: 5.6

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

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H