9.8

CVE-2024-36031: linux Use of a Key Past its Expiration Date

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2024-36031DEBIAN-CVE-2024-36031
Published 30-05-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-36031 is a critical (CVSS 9.8) Use of a Key Past its Expiration Date vulnerability in linux. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 53.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 22
DLA-3843-1DSA-5703-1MGASA-2024-0263MGASA-2024-0266RHSA-2024:9315SUSE-SU-2024:4314-1

Timeline

  1. 30-05-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.75%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.75% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu112 products
  • linux< 5.15.0-118.128 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1067.73 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 97be1e865e70e5a0ad0a5b5f5dca5031ca0b53ac, < ad2011ea787928b2accb5134f1e423b11fe80a8a | ≥ 2552b32b0b349df160a509fe49f5f308cb922f2b, < ed79b93f725cd0da39a265dc23d77add1527b9be | ≥ 791d5409cdb974c31a1bc7a903ea729ddc7d83df, < e4519a016650e952ad9eb27937f8c447d5a4e06d | ≥ afc360e8a1256acb7579a6f5b6f2c30b85b39301, < 25777f3f4e1f371d16a594925f31e37ce07b6ec7 | ≥ 39299bdd2546688d92ed9db4948f6219ca1b9542, < 939a08bcd4334bad4b201e60bd0ae1f278d71d41 | ≥ 39299bdd2546688d92ed9db4948f6219ca1b9542, < cc219cb8afbc40ec100c0de941047bb29373126a | ≥ 39299bdd2546688d92ed9db4948f6219ca1b9542, < 9da27fb65a14c18efd4473e2e82b76b53ba60252 | ≥ 5.10.206, < 5.10.217 | ≥ 5.15.146, < 5.15.159 | ≥ 6.1.70, < 6.1.91 | ≥ 6.6.9, < 6.6.31 | 6.7
  • linux_kernel≥ 5.10.206, < 5.10.217 | ≥ 5.15.146, < 5.15.159 | ≥ 6.1.70, < 6.1.91 | ≥ 6.6.9, < 6.6.31 | ≥ 6.7, < 6.8.10 | ≥ 6.9, < 6.9.1
Debian1 product
  • linux< 6.1.94-1 | < 6.8.11-1

3 vendors · 115 products

References

26 links
Show all 26 references