USN-484-1: curl vulnerability

Ubuntu Security Notice USN-484-1

17th July, 2007

curl vulnerability

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

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS


It was discovered that the GnuTLS certificate verification methods
implemented in Curl did not check for expiration and activation dates.
When performing validations, tools using libcurl3-gnutls would
incorrectly allow connections to sites using expired certificates.

Update instructions

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

Ubuntu 7.04:
libcurl3-gnutls 7.15.5-1ubuntu2.1
Ubuntu 6.10:
libcurl3-gnutls 7.15.4-1ubuntu2.2
Ubuntu 6.06 LTS:
libcurl3-gnutls 7.15.1-1ubuntu2.1

To update your system, please follow these instructions:

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