USN-620-1: OpenSSL vulnerabilities
26 June 2008
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 8.04 LTS
It was discovered that OpenSSL was vulnerable to a double-free when using TLS server extensions. A remote attacker could send a crafted packet and cause a denial of service via application crash in applications linked against OpenSSL. Ubuntu 8.04 LTS does not compile TLS server extensions by default. (CVE-2008-0891)
It was discovered that OpenSSL could dereference a NULL pointer. If a user or automated system were tricked into connecting to a malicious server with particular cipher suites, a remote attacker could cause a denial of service via application crash. (CVE-2008-1672)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to reboot your computer to effect the necessary changes.