CVE-2018-16323ImageMagick Information Disclosure
ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel value.
Published Sep 1, 2018 · Updated Aug 7, 2026 · Also known as DEBIAN-CVE-2018-16323, SUSE-SU-2018:2977-1, SUSE-SU-2018:3269-1, UBUNTU-CVE-2018-16323
Key Facts
Routine patching- CVE-2018-16323 is a medium-severity vulnerability (CVSS 6.5 v3.1) affecting ImageMagick, Ubuntu Linux (Canonical), rootio-imagemagick and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 49% probability of exploitation in the next 30 days.
- Fixed versions are available, including GraphicsMagick 1.2.5-78.72.1, GraphicsMagick 1.3.25-102.1, GraphicsMagick-devel 1.3.25-102.1.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
49%
Higher than 98.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
45/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel value. If the affected code is used as a library loaded into a process that includes sensitive information, that information sometimes can be leaked via the image data.
Affected Products
116 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ImageMagickImagemagick | See advisory | 6.9.10-9 |
| Ubuntu LinuxCanonical | 14.04, 16.04, 18.04, 18.10, 19.04 | n/a |
| rootio-imagemagickrootio | See advisory | 8:6.9.10.14+dfsg-1 |
| seal-ImageMagickseal | See advisory | 6.9.10.68-6.el7_9+sp999 |
| GraphicsMagick-develsuse | See advisory | 1.3.25-102.1 |
Patched Releases
GraphicsMagick
1.2.5-78.72.1, 1.3.25-102.1
GraphicsMagick-devel
1.3.25-102.1
ImageMagick
8:6.7.7.10-6ubuntu3.13, 8:6.8.9.9-7ubuntu5.13, 8:6.8.9.9-7ubuntu5.14, 8:6.9.10.14+dfsg-1, 8:6.9.7.4+dfsg-16ubuntu6.4, 8:6.9.7.4+dfsg-16ubuntu6.7, 6.4.3.6-78.74.1, 6.8.8.1-67.1, 6.8.8.1-71.74.1, 6.9.10.68-6.el7_9+sp999, 7.0.7.34-3.24.1, 7.0.7.34-lp150.2.15.1, 6.9.10-9
ImageMagick-devel
6.4.3.6-78.74.1, 6.8.8.1-67.1, 6.8.8.1-71.74.1, 7.0.7.34-3.24.1, 7.0.7.34-lp150.2.15.1
ImageMagick-devel-32bit
6.8.8.1-67.1, 7.0.7.34-lp150.2.15.1
ImageMagick-doc
6.8.8.1-67.1, 7.0.7.34-lp150.2.15.1
ImageMagick-extra
6.8.8.1-67.1, 7.0.7.34-lp150.2.15.1
libGraphicsMagick-Q16-3
1.3.25-102.1
libGraphicsMagick++-devel
1.3.25-102.1
libGraphicsMagick++-Q16-12
1.3.25-102.1
libGraphicsMagick2
1.2.5-78.72.1
libGraphicsMagick3-config
1.3.25-102.1
libGraphicsMagickWand-Q16-2
1.3.25-102.1
libMagick++-6_Q16-3
6.8.8.1-67.1, 6.8.8.1-71.74.1
libMagick++-6_Q16-3-32bit
6.8.8.1-67.1
libMagick++-7_Q16HDRI4
7.0.7.34-3.24.1, 7.0.7.34-lp150.2.15.1
libMagick++-7_Q16HDRI4-32bit
7.0.7.34-lp150.2.15.1
libMagick++-devel
6.4.3.6-78.74.1, 6.8.8.1-67.1, 6.8.8.1-71.74.1, 7.0.7.34-3.24.1, 7.0.7.34-lp150.2.15.1
libMagick++-devel-32bit
6.8.8.1-67.1, 7.0.7.34-lp150.2.15.1
libMagick++1
6.4.3.6-78.74.1
libMagickCore-6_Q16-1
6.8.8.1-67.1, 6.8.8.1-71.74.1
libMagickCore-6_Q16-1-32bit
6.8.8.1-67.1, 6.8.8.1-71.74.1
libMagickCore-7_Q16HDRI6
7.0.7.34-3.24.1, 7.0.7.34-lp150.2.15.1
libMagickCore-7_Q16HDRI6-32bit
7.0.7.34-lp150.2.15.1
libMagickCore1
6.4.3.6-78.74.1
Timeline
Publicly disclosed
Sep 1, 2018
Last updated
Aug 7, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- CWE-665 Improper Initialization
- CWE-908 Use of Uninitialized Resource
References
- advisorysecurity-tracker.debian.org · CVE-2018-16323
- advisoryubuntu.com · CVE-2018-16323
- advisorycve.org · CVERecord
- advisorybugzilla.suse.com · 1074170
- advisorybugzilla.suse.com · 1102003
FAQ
Common Questions.
ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel value.
Affected: ImageMagick; Ubuntu Linux (Canonical) versions 14.04, 16.04, 18.04, 18.10, 19.04; rootio-imagemagick, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including GraphicsMagick 1.2.5-78.72.1, GraphicsMagick 1.3.25-102.1, GraphicsMagick-devel 1.3.25-102.1.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2018-16323 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo