Ubuntu 16.04 & 18.04 USN-6488-2 critical: strongSwan denial of service
ubuntu
December 14, 2023
strongSwan could be made to crash or run programs if it received specially crafted network traffic.
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: strongSwan could be made to crash or run programs if it received specially crafted network traffic. Software Description: - strongswan: IPsec VPN solution Details: USN-6488-1 fixed a vulnerability in strongSwan. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: Florian Picca discovered that strongSwan incorrectly handled certain DH public values. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code.
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS (Available with Ubuntu Pro): libstrongswan 5.6.2-1ubuntu2.9+esm1 strongswan 5.6.2-1ubuntu2.9+esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): libstrongswan 5.3.5-1ubuntu3.8+esm4 strongswan 5.3.5-1ubuntu3.8+esm4 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-6488-2
https://ubuntu.com/security/notices/USN-6488-1
CVE-2023-41913
PREVIOUS
NEXT
Severity
critical
Lowest
Low
Medium
High
Critical
Ubuntu Security Notice USN-6488-2
Topics Covered
Package Information
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!