CVE-2018-20189 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Graphicsmagick	Graphicsmagick	1.3.31
Debian	Debian Linux	8.0

Related Weaknesses (CWE)

CWE-20

References

http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589Mailing ListPatchVendor Advisory
http://www.securityfocus.com/bid/106227Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/12/msg00018.htmlMailing ListThird Party Advisory
https://sourceforge.net/p/graphicsmagick/bugs/585/ExploitThird Party Advisory
https://usn.ubuntu.com/4207-1/
https://www.debian.org/security/2020/dsa-4640
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589Mailing ListPatchVendor Advisory
http://www.securityfocus.com/bid/106227Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/12/msg00018.htmlMailing ListThird Party Advisory
https://sourceforge.net/p/graphicsmagick/bugs/585/ExploitThird Party Advisory
https://usn.ubuntu.com/4207-1/
https://www.debian.org/security/2020/dsa-4640

FAQ

What is CVE-2018-20189?

CVE-2018-20189 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 als...

How severe is CVE-2018-20189?

CVE-2018-20189 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-20189?

Check the references section above for vendor advisories and patch information. Affected products include: Graphicsmagick Graphicsmagick, Debian Debian Linux.