CVE-2024-12243

Publication date 10 February 2025

Last updated 20 February 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.

Status

Package Ubuntu Release Status
gnutls28 24.10 oracular
Fixed 3.8.6-2ubuntu1.1
24.04 LTS noble
Fixed 3.8.3-1.1ubuntu3.3
22.04 LTS jammy
Fixed 3.7.3-4ubuntu1.6
20.04 LTS focal
Fixed 3.6.13-2ubuntu1.12
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

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