Description
The ReadWPGImage function in coders/wpg.c in ImageMagick 7.0.7-9 does not properly validate the colormap index in a WPG palette, which allows remote attackers to cause a denial of service (use of uninitialized data or invalid memory allocation) or possibly have unspecified other impact via a malformed WPG file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | imagemagick | 8:6.9.9.34+dfsg-3 | — |
| Debian 13 | imagemagick | 8:6.9.9.34+dfsg-3 | — |
| Debian 12 | imagemagick | 8:6.9.9.34+dfsg-3 | — |
| Debian 9 | imagemagick | 8:6.9.7.4+dfsg-11+deb9u4 | DSA-4074-1 |
| Debian 8 | imagemagick | 8:6.8.9.9-5+deb8u11 | DSA-4040-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | imagemagick | 8:6.9.7.4+dfsg-16ubuntu6.2 | USN-3681-1 |
| Ubuntu 16.04 LTS | imagemagick | 8:6.8.9.9-7ubuntu5.11 | USN-3681-1 |
| Ubuntu 14.04 LTS | imagemagick | 8:6.7.7.10-6ubuntu3.11 | USN-3681-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | ImageMagick | 6.8.8.1-71.17.1 | SUSE-SU-2017:3388-1 |
| SLES 12 SP2 | ImageMagick | 6.8.8.1-71.17.1 | SUSE-SU-2017:3388-1 |
| SLES 11 SP4 | GraphicsMagick | 1.2.5-4.78.19.1 | SUSE-SU-2017:3435-1 |
| SLES 11 SP4 | ImageMagick | 6.4.3.6-7.78.14.1 | SUSE-SU-2017:3378-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Studio Onsite 1.3 | GraphicsMagick | 1.2.5-4.78.19.1 | SUSE-SU-2017:3435-1 |
| SLES for SAP 12 SP3 | ImageMagick | 6.8.8.1-71.17.1 | SUSE-SU-2017:3388-1 |
| SLES for SAP 12 SP2 | ImageMagick | 6.8.8.1-71.17.1 | SUSE-SU-2017:3388-1 |
| SLES for SAP 11 SP4 | ImageMagick | 6.4.3.6-7.78.14.1 | SUSE-SU-2017:3378-1 |
Advisories 6
- USN-3681-1 imagemagick vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4040-1 imagemagick - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4074-1 imagemagick - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:3378-1 Security update for ImageMagick SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3388-1 Security update for ImageMagick SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3435-1 Security update for GraphicsMagick SUSE / openSUSE Security Updates · Feb 4, 2026
References
- DSA-4040 vendor-advisory
- USN-3681-1 vendor-advisory
- DSA-4074 vendor-advisory
- https://github.com/ImageMagick/ImageMagick/issues/851
- https://github.com/ImageMagick/ImageMagick/commit/e04cf3e9524f50ca336253513d977224e083b816
- https://github.com/ImageMagick/ImageMagick/commit/2130bf6f89ded32ef0c88a11694f107c52566c53