1. Ubuntu Security Notices
  2. USN-3301-1

USN-3301-1: strongSwan vulnerabilities

Publication date

30 May 2017

Overview

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

Releases

Packages

Details

It 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)

It 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)

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
17.04 zesty libstrongswan –  5.5.1-1ubuntu3.1
strongswan –  5.5.1-1ubuntu3.1
16.10 yakkety libstrongswan –  5.3.5-1ubuntu4.3
strongswan –  5.3.5-1ubuntu4.3
strongswan-plugin-gmp –  5.3.5-1ubuntu4.3
16.04 xenial libstrongswan –  5.3.5-1ubuntu3.3
strongswan –  5.3.5-1ubuntu3.3
strongswan-plugin-gmp –  5.3.5-1ubuntu3.3
14.04 trusty libstrongswan –  5.1.2-0ubuntu2.6
strongswan –  5.1.2-0ubuntu2.6
strongswan-plugin-gmp –  5.1.2-0ubuntu2.6

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›