Secuno
ENNL
Book demo

CVE-2024-36031

Linux Kernel vulnerability

9.8 CRITICALEPSS 0.75%
  1. Published30 May 2024

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

Remediation

Fixed in
Linux Kernel≥ 5.10.217

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-399238.1
Flarum before 1.8.16 contains a password reset token expiry bypass vulnerability that…
CVE-2025-22918.1
Password can be used past expiry in PgBouncer due to auth_query not taking into account…
CVE-2025-311238.7
Zitadel is open-source identity infrastructure software. A vulnerability existed where…

Frequently asked

Is CVE-2024-36031 being actively exploited?

CVE-2024-36031 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.75%.

How severe is CVE-2024-36031?

CVE-2024-36031 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.75% probability of exploitation.

Which products are affected by CVE-2024-36031?

Affected products include Linux Kernel.

How do I fix CVE-2024-36031?

Upgrade affected software to a fixed version, for example Linux Kernel 5.10.217 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-36031 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.