USN-2923-1: BeanShell vulnerability

8 March 2016

bsh vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


BeanShell could be made to run programs if it processed specially crafted input.

Software Description

  • bsh - Java scripting environment


Alvaro Muñoz and Christian Schneider discovered that BeanShell incorrectly handled deserialization. A remote attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 15.10
bsh - 2.0b4-15ubuntu0.15.10.1
libbsh-java - 2.0b4-15ubuntu0.15.10.1
Ubuntu 14.04 LTS
bsh - 2.0b4-15ubuntu0.14.04.1
libbsh-java - 2.0b4-15ubuntu0.14.04.1
Ubuntu 12.04 LTS
bsh - 2.0b4-12ubuntu0.1
bsh-gcj - 2.0b4-12ubuntu0.1

To update your system, please follow these instructions:

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