==========================================================================
Ubuntu Security Notice USN-2155-1
March 25, 2014
openssh vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 13.10
– Ubuntu 12.10
– Ubuntu 12.04 LTS
– Ubuntu 10.04 LTS
Summary:
OpenSSH incorrectly handled environment restrictions with wildcards.
Software Description:
– openssh: secure shell (SSH) for secure access to remote machines
Details:
Jann Horn discovered that OpenSSH incorrectly handled wildcards in
AcceptEnv lines. A remote attacker could use this issue to possibly bypass
certain intended environment variable restrictions.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 13.10:
openssh-server 1:6.2p2-6ubuntu0.2
Ubuntu 12.10:
openssh-server 1:6.0p1-3ubuntu1.1
Ubuntu 12.04 LTS:
openssh-server 1:5.9p1-5ubuntu1.2
Ubuntu 10.04 LTS:
openssh-server 1:5.3p1-3ubuntu7.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2155-1
CVE-2014-2532
Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:6.2p2-6ubuntu0.2
https://launchpad.net/ubuntu/+source/openssh/1:6.0p1-3ubuntu1.1
https://launchpad.net/ubuntu/+source/openssh/1:5.9p1-5ubuntu1.2
https://launchpad.net/ubuntu/+source/openssh/1:5.3p1-3ubuntu7.1
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