CVE-2025-6395

Publication date 10 July 2025

Last updated 12 September 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

A NULL pointer dereference flaw was found in the GnuTLS software in _gnutls_figure_common_ciphersuite().

Status

Package Ubuntu Release Status
gnutls28 25.04 plucky
Fixed 3.8.9-2ubuntu3.1
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 3.8.3-1.1ubuntu3.4
22.04 LTS jammy
Fixed 3.7.3-4ubuntu1.7
20.04 LTS focal
Fixed 3.6.13-2ubuntu1.12+esm1
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected

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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

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

References

Related Ubuntu Security Notices (USN)

Other references