Ubuntu Security Notice USN-3228-1
13th March, 2017
libevent vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Several security issues were fixed in libevent.
Software description
- libevent
– Asynchronous event notification library
Details
Guido Vranken discovered that libevent incorrectly handled memory when
processing certain data. A remote attacker could possibly use this issue
with an application that uses libevent to cause a denial of service, or
possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.10:
-
libevent-2.0-5
2.0.21-stable-2ubuntu0.16.10.1
- Ubuntu 16.04 LTS:
-
libevent-2.0-5
2.0.21-stable-2ubuntu0.16.04.1
- Ubuntu 14.04 LTS:
-
libevent-2.0-5
2.0.21-stable-1ubuntu1.14.04.2
- Ubuntu 12.04 LTS:
-
libevent-2.0-5
2.0.16-stable-1ubuntu0.2
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.