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USN-522-1: openssl vulnerabilities

28 September 2007

openssl vulnerabilities

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Releases

Packages

Details

It was discovered that OpenSSL did not correctly perform Montgomery
multiplications. Local attackers might be able to reconstruct RSA
private keys by examining another user's OpenSSL processes. (CVE-2007-3108)

Moritz Jodeit discovered that OpenSSL's SSL_get_shared_ciphers function
did not correctly check the size of the buffer it was writing to.
A remote attacker could exploit this to write one NULL byte past the end of
an application's cipher list buffer, possibly leading to arbitrary code
execution or a denial of service. (CVE-2007-5135)

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 7.04
Ubuntu 6.10
Ubuntu 6.06

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