CVE-2024-28835

Publication date 21 March 2024

Last updated 30 May 2025

Ubuntu priority

Cvss 3 Severity Score

A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the “certtool --verify-chain” command.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gnutls28	24.04 LTS noble	Fixed 3.8.3-1.1ubuntu3.1
	23.10 mantic	Fixed 3.8.1-4ubuntu1.3
	22.04 LTS jammy	Fixed 3.7.3-4ubuntu1.5
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected

Notes

mdeslaur

per Debian, introduced in 3.7.0

Patch details

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

Package	Patch details
gnutls28	Upstream: 4a4cefe Upstream: e369e67

Severity score breakdown

Parameter	Value
Base score	5.0 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H