USN-2145-1: libssh vulnerability

Releases

• Ubuntu 13.10
• Ubuntu 12.10
• Ubuntu 12.04

Packages

• libssh - A tiny C SSH library

Details

Aris Adamantiadis discovered that libssh allowed the OpenSSL PRNG state to
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

• libssh-4 - 0.5.2-1ubuntu0.12.04.3

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

References

• CVE-2014-0017