HOMEVULNERABILITIESCVE-2018-20184
MEDIUM

CVE-2018-20184

CWE-787Published: December 17, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

In GraphicsMagick 1.4 snapshot-20181209 Q8, there is a heap-based buffer overflow in the WriteTGAImage function of tga.c, which allows attackers to cause a denial of service via a crafted image file, because the number of rows or columns can exceed the pixel-dimension restrictions of the TGA specification.

NVD Source

Technical Analysis

CVE-2018-20184 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

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/15d1b5fd003b
PATCHhttp://hg.graphicsmagick.org/hg/GraphicsMagick/rev/15d1b5fd003b
ADVISORYhttp://www.securityfocus.com/bid/106229
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00018.html
ADVISORYhttps://sourceforge.net/p/graphicsmagick/bugs/583/
ADVISORYhttp://www.securityfocus.com/bid/106229
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00018.html
ADVISORYhttps://sourceforge.net/p/graphicsmagick/bugs/583/

All References (12)

→
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/15d1b5fd003bPatch · Vendor Advisory
→
http://www.securityfocus.com/bid/106229Third 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/583/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/15d1b5fd003bPatch · Vendor Advisory
→
http://www.securityfocus.com/bid/106229Third 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/583/Exploit · Third Party Advisory
→
https://usn.ubuntu.com/4207-1/
→
https://www.debian.org/security/2020/dsa-4640

Quick Facts

CVE IDCVE-2018-20184
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
Affected2 vendor(s)
PublishedDec 17, 2018

Related CVEs (CWE-787)

CVE-2026-4746
10.0
CVE-2016-9343
10.0
CVE-2009-2466
10.0
CVE-2026-42369
10.0
CVE-2004-0978
10.0
CVE-2019-5049
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-20184 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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