CVE-2024-36031 keys: Fix overwrite of key expiration on instantiation

2024-05-3015:23:46

Linux

github.com

linux kernel

key expiration

vulnerability

dns resolution

instantiation

AI Score

6.7

Confidence

Low

EPSS

Percentile

10.3%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

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.

ADP Affected

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