CVE-2024-36031

critical

Description

In the Linux kernel, the following vulnerability has been resolved: keys: Fix overwrite of key expiration on instantiation The expiry time of a key is unconditionally overwritten during instantiation, defaulting to turn it permanent. This causes a problem for DNS resolution as the expiration set by user-space is overwritten to TIME64_MAX, disabling further DNS updates. Fix this by restoring the condition that key_set_expiry is only called when the pre-parser sets a specific expiry.

References

https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html

https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9be

https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06d

https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126a

https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8a

https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252

https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41

https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7

Details

Source: Mitre, NVD

Published: 2024-05-30

Updated: 2024-07-03

Risk Information

CVSS v2

Base Score: 7.2

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

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical