Ubuntu Security Notice USN-884-1
13th January, 2010
openssl vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.10
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Software description
- openssl
Details
It was discovered that OpenSSL did not correctly free unused memory in
certain situations. A remote attacker could trigger this flaw in services
that used SSL, causing the service to use all available system memory,
leading to a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.10:
- libssl0.9.8 0.9.8g-16ubuntu3.1
- Ubuntu 9.04:
- libssl0.9.8 0.9.8g-15ubuntu3.4
- Ubuntu 8.10:
- libssl0.9.8 0.9.8g-10.1ubuntu2.6
- Ubuntu 8.04 LTS:
- libssl0.9.8 0.9.8g-4ubuntu3.9
- Ubuntu 6.06 LTS:
- libssl0.9.8 0.9.8a-7ubuntu0.11
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart any applications
using OpenSSL, especially Apache, to effect the necessary changes.