HOMEVULNERABILITIESCVE-2018-20189
MEDIUM

CVE-2018-20189

CWE-20Published: December 17, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2018-20189 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
graphicsmagick1 product(s)
graphicsmagick
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589
PATCHhttp://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589
ADVISORYhttp://www.securityfocus.com/bid/106227
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00018.html
ADVISORYhttps://sourceforge.net/p/graphicsmagick/bugs/585/
ADVISORYhttp://www.securityfocus.com/bid/106227
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00018.html
ADVISORYhttps://sourceforge.net/p/graphicsmagick/bugs/585/

All References (12)

→
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

Quick Facts

CVE IDCVE-2018-20189
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected2 vendor(s)
PublishedDec 17, 2018

Related CVEs (CWE-20)

CVE-2020-12389
10.0
CVE-2021-23279
10.0
CVE-2020-6962
10.0
CVE-2020-12388
10.0
CVE-2020-13753
10.0
CVE-2024-22476
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-20189 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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