USN-1018-1: OpenSSL vulnerability

18 November 2010

openssl vulnerability

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

  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 8.04 LTS


Software Description

  • openssl


Rob Hulswit discovered a race condition in the OpenSSL TLS server extension parsing code when used within a threaded server. A remote attacker could trigger this flaw to cause a denial of service or possibly execute arbitrary code with application privileges. (CVE-2010-3864)

Update instructions

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

Ubuntu 10.10
libssl0.9.8 - 0.9.8o-1ubuntu4.2
Ubuntu 10.04 LTS
libssl0.9.8 - 0.9.8k-7ubuntu8.4
Ubuntu 9.10
libssl0.9.8 - 0.9.8g-16ubuntu3.4
Ubuntu 8.04 LTS
libssl0.9.8 - 0.9.8g-4ubuntu3.12

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.