CVE-2018-5248
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the...
8.8 HighFix available
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
3.54%Up 2.3 points since Apr 14, 2021
What each source reports
NVD Score used
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
CVE-2018-5248- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
CVE-2018-5248- Updated
- 2026-11-02
EUVDEUVD-2018-17030 No score
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
EUVD-2018-17030- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-973q-gr5m-j493
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the...
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
GHSA-973q-gr5m-j493- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
CVE-2018-5248- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-5248
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
DEBIAN-CVE-2018-5248- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-5248
In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
- Record
UBUNTU-CVE-2018-5248- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUSN-3681-1 No score
imagemagick vulnerabilities
It was discovered that ImageMagick incorrectly handled certain malformed image files. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program.
- Record
USN-3681-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
imagemagickDebian:12 |
before 8:6.9.9.34+dfsg-3 | 8:6.9.9.34+dfsg-3 |
imagemagickDebian:13 |
before 8:6.9.9.34+dfsg-3 | 8:6.9.9.34+dfsg-3 |
imagemagickDebian:14 |
before 8:6.9.9.34+dfsg-3 | 8:6.9.9.34+dfsg-3 |
imagemagickDebian:8 From an advisory covering 8 CVEs |
before 8:6.8.9.9-5+deb8u12, plus listed versions 8:6.8.9.9-58:6.8.9.9-5+deb8u18:6.8.9.9-5+deb8u108:6.8.9.9-5+deb8u118:6.8.9.9-5+deb8u2 Show 7 moreShow less8:6.8.9.9-5+deb8u38:6.8.9.9-5+deb8u48:6.8.9.9-5+deb8u58:6.8.9.9-5+deb8u68:6.8.9.9-5+deb8u78:6.8.9.9-5+deb8u88:6.8.9.9-5+deb8u9 |
8:6.8.9.9-5+deb8u12 |
imagemagickDebian:9 From an advisory covering 4 CVEs |
before 8:6.9.7.4+dfsg-11+deb9u5, plus listed versions 8:6.9.7.4+dfsg-118:6.9.7.4+dfsg-11+deb9u18:6.9.7.4+dfsg-11+deb9u28:6.9.7.4+dfsg-11+deb9u38:6.9.7.4+dfsg-11+deb9u4 |
8:6.9.7.4+dfsg-11+deb9u5 |
imagemagickUbuntu:16.04:LTS |
before 8:6.8.9.9-7ubuntu5.11, plus listed versions 8:6.8.9.9-5ubuntu28:6.8.9.9-68:6.8.9.9-6build18:6.8.9.9-78:6.8.9.9-7ubuntu1 Show 13 moreShow less8:6.8.9.9-7ubuntu28:6.8.9.9-7ubuntu38:6.8.9.9-7ubuntu48:6.8.9.9-7ubuntu58:6.8.9.9-7ubuntu5.18:6.8.9.9-7ubuntu5.28:6.8.9.9-7ubuntu5.38:6.8.9.9-7ubuntu5.48:6.8.9.9-7ubuntu5.58:6.8.9.9-7ubuntu5.68:6.8.9.9-7ubuntu5.78:6.8.9.9-7ubuntu5.88:6.8.9.9-7ubuntu5.9 |
8:6.8.9.9-7ubuntu5.11 |
imagemagickUbuntu:18.04:LTS |
before 8:6.9.7.4+dfsg-16ubuntu6.2, plus listed versions 8:6.9.7.4+dfsg-16ubuntu28:6.9.7.4+dfsg-16ubuntu38:6.9.7.4+dfsg-16ubuntu48:6.9.7.4+dfsg-16ubuntu58:6.9.7.4+dfsg-16ubuntu6 |
8:6.9.7.4+dfsg-16ubuntu6.2 |
imagemagickUbuntu:14.04:LTS From an advisory covering 124 CVEs |
before 8:6.7.7.10-6ubuntu3.11, plus listed versions 8:6.7.7.10-5ubuntu38:6.7.7.10-5ubuntu48:6.7.7.10-6ubuntu18:6.7.7.10-6ubuntu28:6.7.7.10-6ubuntu3 Show 9 moreShow less8:6.7.7.10-6ubuntu3.18:6.7.7.10-6ubuntu3.28:6.7.7.10-6ubuntu3.38:6.7.7.10-6ubuntu3.48:6.7.7.10-6ubuntu3.58:6.7.7.10-6ubuntu3.68:6.7.7.10-6ubuntu3.78:6.7.7.10-6ubuntu3.88:6.7.7.10-6ubuntu3.9 |
8:6.7.7.10-6ubuntu3.11 |
imagemagickUbuntu:16.04:LTS From an advisory covering 124 CVEs |
before 8:6.8.9.9-7ubuntu5.11, plus listed versions 8:6.8.9.9-5ubuntu28:6.8.9.9-68:6.8.9.9-6build18:6.8.9.9-78:6.8.9.9-7ubuntu1 Show 13 moreShow less8:6.8.9.9-7ubuntu28:6.8.9.9-7ubuntu38:6.8.9.9-7ubuntu48:6.8.9.9-7ubuntu58:6.8.9.9-7ubuntu5.18:6.8.9.9-7ubuntu5.28:6.8.9.9-7ubuntu5.38:6.8.9.9-7ubuntu5.48:6.8.9.9-7ubuntu5.58:6.8.9.9-7ubuntu5.68:6.8.9.9-7ubuntu5.78:6.8.9.9-7ubuntu5.88:6.8.9.9-7ubuntu5.9 |
8:6.8.9.9-7ubuntu5.11 |
imagemagickUbuntu:18.04:LTS From an advisory covering 124 CVEs |
before 8:6.9.7.4+dfsg-16ubuntu6.2, plus listed versions 8:6.9.7.4+dfsg-16ubuntu28:6.9.7.4+dfsg-16ubuntu38:6.9.7.4+dfsg-16ubuntu48:6.9.7.4+dfsg-16ubuntu58:6.9.7.4+dfsg-16ubuntu6 |
8:6.9.7.4+dfsg-16ubuntu6.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-5248 is a high vulnerability (CVSS 8.8) in Imagemagick, published January 5, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.54%, the 89th percentile. Fixed in imagemagick 8:6.9.9.34+dfsg-3.
References
usn.ubuntu.com/3681-1
github.com/ImageMagick/ImageMagick/issues/927
securityfocus.com/bid/102431
debian.org/security/2018/dsa-4245
nvd.nist.gov/vuln/detail/CVE-2018-5248
Show 128 moreShow less
security-tracker.debian.org/tracker/CVE-2018-5248
ubuntu.com/security/CVE-2018-5248
cve.org/CVERecord?id=CVE-2018-5248