CVE-2018-11251 — ImageMagick: heap-based buffer over-read in ReadSUNImage in coders/sun.c

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MEDIUM

ImageMagick: heap-based buffer over-read in ReadSUNImage in coders/sun.c

Published May 18, 2018

6.5

MEDIUM

CVSS 3.0

EPSS 2.12%

Description

In ImageMagick 7.0.7-23 Q16 x86_64 2018-01-24, there is a heap-based buffer over-read in ReadSUNImage in coders/sun.c, which allows attackers to cause a denial of service (application crash in SetGrayscaleImage in MagickCore/quantize.c) via a crafted SUN image file.

Affected products

Red Hat Enterprise Linux 5

ImageMagick

Not affected
Red Hat Enterprise Linux 6

ImageMagick

Not affected
Red Hat Enterprise Linux 7

ImageMagick

Not affected
Red Hat Enterprise Linux 8

ImageMagick

Will not fix

Product	Package	State	Advisory
Red Hat Enterprise Linux 5	ImageMagick	Not affected	n/a
Red Hat Enterprise Linux 6	ImageMagick	Not affected	n/a
Red Hat Enterprise Linux 7	ImageMagick	Not affected	n/a
Red Hat Enterprise Linux 8	ImageMagick	Will not fix	n/a

Remediation

Red Hat statement

This issue did not affect the versions of ImageMagick shipped with Red Hat Enterprise Linux 5, 6, and 7.

Metrics

2.12% 0.02117

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.02117

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	2.12% (0.02117)	81.19th	v5 (v2026.06.15)
Jun 15, 2026	2.15% (0.02150)	79.68th	v5 (v2026.06.15)
Mar 17, 2025	0.22% (0.00217)	42.35th	v4 (v2025.03.14)
Dec 12, 2024	0.44% (0.00438)	75.60th	v3 (v2023.03.01)
Feb 8, 2024	0.44% (0.00438)	74.03th	v3 (v2023.03.01)
Oct 9, 2023	0.44% (0.00438)	71.81th	v3 (v2023.03.01)
Sep 3, 2023	0.47% (0.00475)	72.67th	v3 (v2023.03.01)
Mar 7, 2023	0.41% (0.00408)	69.76th	v3 (v2023.03.01)
Mar 6, 2023	1.02% (0.01018)	40.69th	v2 (v2022.01.01)
Feb 4, 2022	1.02% (0.01018)	19.50th	v2 (v2022.01.01)
Feb 3, 2022	1.55% (0.01550)	33.66th	v5 (v2026.06.15)
Apr 14, 2021	1.55% (0.01550)	0.00th	v1

Weaknesses (2)

CWE-122

CWE-125

Out-of-bounds Read

References (9)

https://access.redhat.com/security/cve/CVE-2018-11251
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1581493
Issue Tracking
https://github.com/ImageMagick/ImageMagick/issues/956
x_refsource_CONFIRMExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00012.html
mailing-listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00004.html
mailing-listx_refsource_MLIST
https://nvd.nist.gov/vuln/detail/CVE-2018-11251
https://usn.ubuntu.com/3681-1/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2018-11251
https://www.debian.org/security/2018/dsa-4245
vendor-advisoryx_refsource_DEBIAN

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2018-11251		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1581493		Issue Tracking
https://github.com/ImageMagick/ImageMagick/issues/956		x_refsource_CONFIRMExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00012.html		mailing-listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00004.html		mailing-listx_refsource_MLIST
https://nvd.nist.gov/vuln/detail/CVE-2018-11251
https://usn.ubuntu.com/3681-1/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2018-11251
https://www.debian.org/security/2018/dsa-4245		vendor-advisoryx_refsource_DEBIAN