1. Ubuntu Security Notices
  2. USN-6488-1

USN-6488-1: strongSwan vulnerability

Publication date

20 November 2023

Overview

strongSwan could be made to crash or run programs if it received specially crafted network traffic.

Releases

Packages

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
23.10 mantic libstrongswan –  5.9.11-1ubuntu1.1
strongswan –  5.9.11-1ubuntu1.1
23.04 lunar libstrongswan –  5.9.8-3ubuntu4.1
strongswan –  5.9.8-3ubuntu4.1
22.04 jammy libstrongswan –  5.9.5-2ubuntu2.2
strongswan –  5.9.5-2ubuntu2.2
20.04 focal libstrongswan –  5.8.2-1ubuntu3.6
strongswan –  5.8.2-1ubuntu3.6

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References

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