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USN-620-1: OpenSSL vulnerabilities

26 June 2008

OpenSSL vulnerabilities

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

Details

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 8.04

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.