CVE-2018-20189

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.65%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory graphicsmagick.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106227 vdb entry third party advisory
https://sourceforge.net/p/graphicsmagick/bugs/585/ third party advisory exploit
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589 mailing list patch vendor advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00018.html third party advisory mailing list
https://usn.ubuntu.com/4207-1/ vendor advisory
https://www.debian.org/security/2020/dsa-4640 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20189?
CVE-2018-20189 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20189?
To fix CVE-2018-20189, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20189 being actively exploited in the wild?
It is possible that CVE-2018-20189 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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