CVE-2018-20189

In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.

• CWE-20

• http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589Mailing List, Patch, Vendor Advisory
• http://www.securityfocus.com/bid/106227Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/12/msg00018.htmlMailing List, Third Party Advisory
• https://sourceforge.net/p/graphicsmagick/bugs/585/Exploit, Third Party Advisory
• https://usn.ubuntu.com/4207-1/
• https://www.debian.org/security/2020/dsa-4640
• http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589Mailing List, Patch, Vendor Advisory
• http://www.securityfocus.com/bid/106227Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/12/msg00018.htmlMailing List, Third Party Advisory
• https://sourceforge.net/p/graphicsmagick/bugs/585/Exploit, Third Party Advisory
• https://usn.ubuntu.com/4207-1/
• https://www.debian.org/security/2020/dsa-4640

Published

Dec 17, 2018

Last Modified

Jun 17, 2026

Status

Modified

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