Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : strongswan vulnerabilities (USN-3301-1)
Medium Nessus Plugin ID 100546
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionIt was discovered that the strongSwan gmp plugin incorrectly validated RSA public keys. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service. (CVE-2017-9022)
It was discovered that strongSwan incorrectly parsed ASN.1 CHOICE types. A remote attacker could use this issue to cause strongSwan to hang, resulting in a denial of service. (CVE-2017-9023).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected libstrongswan, strongswan and / or strongswan-plugin-gmp packages.