CVE-2026-42014

Publication date 30 April 2026

Last updated 16 July 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.6 · Medium

Score breakdown

Description

A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path.

Read the notes from the security team

Status

Package Ubuntu Release Status
gnutls28 26.04 LTS resolute
Fixed 3.8.12-2ubuntu1.1
25.10 questing
Fixed 3.8.9-3ubuntu2.2
24.04 LTS noble
Fixed 3.8.3-1.1ubuntu3.6
22.04 LTS jammy
Fixed 3.7.3-4ubuntu1.9
20.04 LTS focal
Fixed 3.6.13-2ubuntu1.12+esm3
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected

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Notes

mrmajumder

xenial and bionic are not-affected, the use-after-free path was introduced in 3.6.13.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gnutls28

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.6 · Medium

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

References

Related Ubuntu Security Notices (USN)

Other references

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