USN-3397-1: strongSwan vulnerability
Ubuntu Security Notice USN-3397-1
21st August, 2017
strongswan vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
strongSwan could be made to crash or hang if it received specially crafted
network traffic.
Software description
- strongswan
– IPsec VPN solution
Details
It was discovered that strongSwan incorrectly handled verifying
specific RSA signatures. A remote attacker could use this issue
to cause strongSwan to crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.04:
-
libstrongswan
5.5.1-1ubuntu3.2
-
strongswan
5.5.1-1ubuntu3.2
- Ubuntu 16.04 LTS:
-
libstrongswan
5.3.5-1ubuntu3.4
-
strongswan
5.3.5-1ubuntu3.4
- Ubuntu 14.04 LTS:
-
libstrongswan
5.1.2-0ubuntu2.7
-
strongswan
5.1.2-0ubuntu2.7
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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