========================================================================== Ubuntu Security Notice USN-6488-1 November 20, 2023
strongswan vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: strongSwan could be made to crash or run programs if it received specially crafted network traffic. Software Description: - strongswan: IPsec VPN solution 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. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: libstrongswan 5.9.11-1ubuntu1.1 strongswan 5.9.11-1ubuntu1.1 Ubuntu 23.04: libstrongswan 5.9.8-3ubuntu4.1 strongswan 5.9.8-3ubuntu4.1 Ubuntu 22.04 LTS: libstrongswan 5.9.5-2ubuntu2.2 strongswan 5.9.5-2ubuntu2.2 Ubuntu 20.04 LTS: libstrongswan 5.8.2-1ubuntu3.6 strongswan 5.8.2-1ubuntu3.6 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6488-1 CVE-2023-41913 Package Information: https://launchpad.net/ubuntu/+source/strongswan/5.9.11-1ubuntu1.1 https://launchpad.net/ubuntu/+source/strongswan/5.9.8-3ubuntu4.1 https://launchpad.net/ubuntu/+source/strongswan/5.9.5-2ubuntu2.2 https://launchpad.net/ubuntu/+source/strongswan/5.8.2-1ubuntu3.6
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