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USN-1707-1: libssh vulnerability

28 January 2013

libssh could be made to crash if it received specially crafted network traffic.



  • libssh - A tiny C SSH library


Yong Chuan Koh discovered that libssh incorrectly handled certain
negotiation requests. A remote attacker could use this to cause libssh to
crash, resulting in a denial of service.

Update instructions

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

Ubuntu 12.10
Ubuntu 12.04
Ubuntu 11.10
Ubuntu 10.04

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