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CVE-2018-20185

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over...

5.3 MediumFix available

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.11%Up 0.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.3

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
CVE-2018-20185
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
2.6 LowAV:N/AC:H/Au:N/C:N/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
CVE-2018-20185
Updated
2026-11-02
EUVDEUVD-2018-12752 No score

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
EUVD-2018-12752
Updated
2026-11-03
GitHub AdvisoriesGHSA-569g-rm32-h5jr 5.3

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over...

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
GHSA-569g-rm32-h5jr
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSV 5.3

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
CVE-2018-20185
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-20185 5.3

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
DEBIAN-CVE-2018-20185
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2018-20185 5.3

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Record
UBUNTU-CVE-2018-20185
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2019-0033 No score

Updated graphicsmagick packages fix security vulnerabilities

It was discovered that graphicsmagick was subject to vulnerabilities.

  • heap-based buffer overflow in the WriteTGAImage function of tga.c (CVE-2018-20184).
  • denial of service vulnerability in ReadDIBImage function of coders/dib.c (CVE-2018-20189).
  • heap-based buffer over-read in the ReadBMPImage function of bmp.c (CVE-2018-20185).
Record
MGASA-2019-0033
Updated
2026-11-02
OSVSUSE-SU-2019:13923-1 No score

Security update for GraphicsMagick

This update for GraphicsMagick fixes the following issues:

Security issues fixed:

  • CVE-2018-18544: Fixed memory leak in the function WriteMSLImage() (bsc#1113064).
  • CVE-2017-10794: Fixed buffer overflow in RGB TIFF picture processing (bsc#1112392).
  • CVE-2017-14997: Fixed integer underflow in ReadPICTImage in coders/pict.c (bsc#1112399).
  • CVE-2018-20185: Fixed heap-based buffer over-read in the ReadBMPImage function of bmp.c (bsc#1119823)
  • CVE-2018-20184: Fixed heap-based buffer overflow in the WriteTGAImage function of tga.c (bsc#1119822)

Regressions fixed after security update:

  • CVE-2017-12663: Fixed memory leak in WriteMAPImage in coders/map.c (bsc#1052754).
  • CVE-2017-9405: Fixed memory leak in the ReadICONImage function (bsc#1042911).
  • CVE-2018-6405: Fixed ReadDCMImage function in coders/dcm (bsc#1078433).

Non-security issues fixed:

  • debug_build: build more suitable for debugging
Record
SUSE-SU-2019:13923-1
Updated
2026-11-02
OSVUSN-4207-1 No score

graphicsmagick vulnerabilities

It was discovered that GraphicsMagick incorrectly handled certain image files. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.

Record
USN-4207-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
graphicsmagick
Debian:12
 before 1.4~hg15880-1
1.4~hg15880-1
graphicsmagick
Debian:13
 before 1.4~hg15880-1
1.4~hg15880-1
graphicsmagick
Debian:14
 before 1.4~hg15880-1
1.4~hg15880-1
graphicsmagick
Debian:8
 before 1.3.20-3+deb8u5, plus listed versions
1.3.20-3+deb8u11.3.20-3+deb8u21.3.20-3+deb8u31.3.20-3+deb8u4
1.3.20-3+deb8u5
graphicsmagick
Mageia:6
 before 1.3.31-1.3.mga6
1.3.31-1.3.mga6
GraphicsMagick
SUSE:Linux Enterprise Software Development Kit 11 SP4
 before 1.2.5-78.78.1
1.2.5-78.78.1
GraphicsMagick
SUSE:Studio Onsite 1.3
 before 1.2.5-78.78.1
1.2.5-78.78.1
graphicsmagick
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
1.3.16-1.1ubuntu21.3.16-1.1ubuntu31.3.18-1ubuntu31.3.18-1ubuntu3.11.3.18-1ubuntu3.1+esm1
Show 7 moreShow less
1.3.18-1ubuntu3.1+esm21.3.18-1ubuntu3.1+esm31.3.18-1ubuntu3.1+esm41.3.18-1ubuntu3.1+esm51.3.18-1ubuntu3.1+esm61.3.18-1ubuntu3.1+esm71.3.18-1ubuntu3.1+esm8
 None known
graphicsmagick
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1.3.21-31.3.23-11.3.23-1build11.3.23-1ubuntu0.11.3.23-1ubuntu0.1+esm1
Show 7 moreShow less
1.3.23-1ubuntu0.21.3.23-1ubuntu0.31.3.23-1ubuntu0.41.3.23-1ubuntu0.51.3.23-1ubuntu0.61.3.23-1ubuntu0.6+esm11.3.23-1ubuntu0.6+esm2
 None known
graphicsmagick
Ubuntu:18.04:LTS
 before 1.3.28-2ubuntu0.1, plus listed versions
1.3.26-151.3.26-161.3.26-191.3.27-11.3.27-21.3.27-31.3.28-11.3.28-2
1.3.28-2ubuntu0.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-20185 is a medium vulnerability (CVSS 5.3) in Graphicsmagick, published December 17, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.11%, the 81st percentile. Fixed in graphicsmagick 1.4~hg15880-1.

References

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