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[USN-2145-1] libssh vulnerability

Posted on 12 March 2014
Ubuntu Security

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Ubuntu Security Notice USN-2145-1
March 12, 2014

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

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

A security issue was fixed in libssh.

Software Description:
- libssh: A tiny C SSH library

Details:

Aris Adamantiadis discovered that libssh allowed the OpenSSL PRNG state t=
o
be reused when implementing forking servers. This could allow an attacker=

to possibly obtain information about the state of the PRNG and perform
cryptographic attacks.

Update instructions:

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

Ubuntu 13.10:
libssh-4 0.5.4-1ubuntu0.1

Ubuntu 12.10:
libssh-4 0.5.2-1ubuntu0.12.10.3

Ubuntu 12.04 LTS:
libssh-4 0.5.2-1ubuntu0.12.04.3

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


References:
http://www.ubuntu.com/usn/usn-2145-1
CVE-2014-0017

Package Information:
https://launchpad.net/ubuntu/+source/libssh/0.5.4-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libssh/0.5.2-1ubuntu0.12.10.3
https://launchpad.net/ubuntu/+source/libssh/0.5.2-1ubuntu0.12.04.3

 

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