USN-1707-1: libssh vulnerability

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04

Packages

• libssh - A tiny C SSH library

Details

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

• libssh-4 - 0.5.2-1ubuntu0.12.10.2

Ubuntu 12.04

• libssh-4 - 0.5.2-1ubuntu0.12.04.2

Ubuntu 11.10

• libssh-4 - 0.5.2-1ubuntu0.11.10.2

Ubuntu 10.04

• libssh-4 - 0.4.2-1ubuntu1.2

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

References

• CVE-2013-0176