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USN-11-1: libgd2 vulnerabilities

29 October 2004

libgd2 vulnerabilities

Releases

Details

Several buffer overflows have been discovered in libgd's PNG handling
functions.

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 instructions

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

Ubuntu 4.10
  • libgd2-xpm -
  • libgd2-noxpm -

In general, a standard system update will make all the necessary changes.

References

Related notices