Ubuntu Security Notice USN-620-1 June 26, 2008==========20================================================= openssl vulnerabilities CVE-2008-0891, CVE-2008-1672 ========================================================== A security issue affects the following Ubuntu releases:
Ubuntu 8.04 LTS
This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the following package versions:
Ubuntu 8.04 LTS: libssl0.9.8 0.9.8g-4ubuntu3.3
After a standard system upgrade you need to reboot your computer to effect the necessary changes.
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)