USN-830-1: OpenSSL vulnerability

Ubuntu Security Notice USN-830-1

14th September, 2009

openssl vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS
  • Ubuntu 6.06 LTS

Software description

  • openssl

Details

Dan Kaminsky discovered OpenSSL would still accept certificates with MD2
hash signatures. As a result, an attacker could potentially create a
malicious trusted certificate to impersonate another site. This update
handles this issue by completely disabling MD2 for certificate validation.

Update instructions

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

Ubuntu 9.04:
libssl0.9.8 0.9.8g-15ubuntu3.3
Ubuntu 8.10:
libssl0.9.8 0.9.8g-10.1ubuntu2.5
Ubuntu 8.04 LTS:
libssl0.9.8 0.9.8g-4ubuntu3.8
Ubuntu 6.06 LTS:
libssl0.9.8 0.9.8a-7ubuntu0.10

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.

References

CVE-2009-2409