CVE-2024-36031
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.75% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-324
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7Patch
- https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41Patch
- https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252Patch
- https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8aPatch
- https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126aPatch
- https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06dPatch
- https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9bePatch
- https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7Patch
- https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41Patch
- https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252Patch
- https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8aPatch
- https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126aPatch
- https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06dPatch
- https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9bePatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.