Summary
The remote host is missing an update to firefox
announced via advisory USN-740-1.
Solution
The problem can be corrected by upgrading your system to the following package versions:
Ubuntu 6.06 LTS:
libnss3 1.5.dfsg+1.5.0.15~prepatch080614k-0ubuntu2
Ubuntu 7.10:
libnss3-0d 3.11.5-3ubuntu0.7.10.2
Ubuntu 8.04 LTS:
libnss3-0d 3.12.0.3-0ubuntu0.8.04.5 libnss3-1d 3.12.0.3-0ubuntu0.8.04.5
Ubuntu 8.10:
libnss3-1d 3.12.0.3-0ubuntu5.8.10.1
After a standard system upgrade you need to restart your session to effect the necessary changes.
https://secure1.securityspace.com/smysecure/catid.html?in=USN-740-1
Insight
The MD5 algorithm is known not to be collision resistant. This update blacklists the proof of concept rogue certificate authority as discussed in http://www.win.tue.nl/hashclash/rogue-ca/.
Severity
Classification
-
CVE CVE-2004-2761 -
CVSS Base Score: 5.0
AV:N/AC:L/Au:N/C:N/I:P/A:N
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