Technical Description

Gentoo has released a security patch to correct a vulnerability identified in ImageMagick and GraphicsMagick. This flaw resides in the "XWD" decoder of ImageMagick and GraphicsMagick when setting a color mask to zero, which may be exploited by attackers to cause a denial of service via a specially crafted image.

Affected Products

media-gfx/imagemagick versions prior to 6.2.2.3
media-gfx/graphicsmagick versions prior to 1.1.6-r1

Solution

Upgrade the affected packages :
# emerge --sync
# emerge --ask --oneshot --verbose " >=media-gfx/imagemagick-6.2.2.3"
# emerge --sync
# emerge --ask --oneshot --verbose " >=media-gfx/graphicsmagick-1.1.6-r1"

References

http://www.vupen.com/english/advisories/2005/0585
http://www.gentoo.org/security/en/glsa/glsa-200505-16.xml

Credits

Vulnerability reported by Tavis Ormandy

ChangeLog

2005-05-23 : Initial release
2005-05-25 : Updated CVE

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