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.

Classification

CVE ID: CVE-2024-36031

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.41% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8a
https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9be
https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06d
https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7
https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41
https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126a
https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252

Timeline