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USN-818-1: curl vulnerability

17 August 2009

curl vulnerability




Scott Cantor discovered that Curl did not correctly handle SSL
certificates with zero bytes in the Common Name. A remote attacker could
exploit this to perform a machine-in-the-middle attack to view sensitive
information or alter encrypted communications.

Update instructions

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

Ubuntu 9.04
Ubuntu 8.10
Ubuntu 8.04
Ubuntu 6.06

In general, a standard system upgrade is sufficient to effect the
necessary changes.


Related notices

  • USN-1158-1: libcurl3-gnutls, libcurl3, libcurl3-nss, curl