USN-90-1: Imagemagick vulnerability
3 March 2005
Imagemagick vulnerability
Releases
Details
Tavis Ormandy discovered a format string vulnerability in ImageMagick's file
name handling. Specially crafted file names could cause a program using
ImageMagick to crash, or possibly even cause execution of arbitrary code.
Since ImageMagick can be used in custom printing systems, this also might lead
to privilege escalation (execute code with the printer spooler's privileges).
However, Ubuntu's standard printing system does not use ImageMagick, thus there
is no risk of privilege escalation in a standard installation.
ImageMagick is also commonly used by web frontends; if these accept image
uploads with arbitrary file names, this could also lead to remote privilege
escalation.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 4.10
-
imagemagick
-
-
libmagick6
-
In general, a standard system update will make all the necessary changes.