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CVE

CVE-2024-36031

In the Linux kernel, the following vulnerability has been resolved: keys: Fix overwrite of key expiration on instantiat

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.

CRITICAL · CVSS 9.8 EPSS 0.00037
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

6
linux kernel>= 5.10.206 and < 5.10.217
linux kernel>= 5.15.146 and < 5.15.159
linux kernel>= 6.1.70 and < 6.1.91
linux kernel>= 6.6.9 and < 6.6.31
linux kernel>= 6.7 and < 6.8.10
linux kernel>= 6.9 and < 6.9.1

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 May 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

22
siemens-csafSSA-613116
suse-csafSUSE-SU-2025:20163-1
suse-csafSUSE-SU-2025:20164-1
suse-csafSUSE-SU-2025:20246-1
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