Ubuntu 24.10 USN-7275-1 Moderate Security: libtasn1 DOS Vulnerability

ubuntu

February 18, 2025

Libtasn1 could be made to crash if it received specially crafted network traffic.

Summary

Libtasn1 could be made to crash if it received specially crafted network

traffic.

Software Description:

- libtasn1-6: Library to manage ASN.1 structures

Details:

Bing Shi discovered that Libtasn1 inefficiently handled certificates. An

attacker could possibly use this issue to increase resource utilization

leading to a denial of service.

Topics Covered

security advisory denial of service update instructions ubuntu network issue libtasn1

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.10
   libtasn1-6                      4.19.0-3ubuntu0.24.10.1
   libtasn1-bin                    4.19.0-3ubuntu0.24.10.1

Ubuntu 22.04 LTS
   libtasn1-6                      4.18.0-4ubuntu0.1
   libtasn1-bin                    4.18.0-4ubuntu0.1

Ubuntu 20.04 LTS
   libtasn1-6                      4.16.0-2ubuntu0.1
   libtasn1-bin                    4.16.0-2ubuntu0.1

In general, a standard system update will make all the necessary changes.