Ubuntu Security Notice (C) 2004-2013 Canonical, Inc. / NASL script (C) 2006-2013 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related patches.
CAN-2004-0990 described several more buffer overflows which had been
discovered in libgd2's PNG handling functions. However, it was
determined that the update from USN-11-1 was not sufficient to prevent
every possible attack, so another update is required.
If an attacker tricked a user into loading a malicious PNG image, they
could leverage this into executing arbitrary code in the context of
the user opening image. Most importantly, this library is commonly
used in PHP. One possible target would be a PHP driven photo website
that lets users upload images. Therefore this vulnerability might lead
to privilege escalation to a web server's privileges.
Update the affected packages.
Risk factor :
Critical / CVSS Base Score : 10.0
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 20640 ()
CVE ID: CVE-2004-0941CVE-2004-0990
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