Description
ImageMagick versions before 7.1.2-32 and 6.9.13-57 contain uninitialized heap memory disclosure in the GIF decoder's application extension handler in coders/gif.c. Attackers can craft malicious GIF files that cause the number parser to read uninitialized heap memory and store contents as image metadata, disclosing sensitive heap information.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ImageMagick | ImageMagick | 7.0.0-0 – < 7.1.2-32, < 6.9.13-57 | 7.1.2-32 |
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 | 8:7.1.2.33+dfsg1-1 | — |
| Debian 13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u13 | — |
| Debian 12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u14 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | imagemagick | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 24.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 22.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 20.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 18.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 16.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 14.04 LTS | imagemagick | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ImageMagick | 7.1.2.32-1.1 | openSUSE-SU-2026:12078-1 |
Advisories 2
- WID-SEC-2026-3591 ImageMagick: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 4, 2026
- openSUSE-SU-2026:12078-1 ImageMagick-7.1.2.32-1.1 on GA media SUSE / openSUSE Security Updates · Oct 9, 2026
References
- GitHub Security Advisory (GHSA-rvv7-5mh8-vcfc) vendor-advisory
- https://github.com/ImageMagick/ImageMagick/commit/a0ca2c739c0216ff4efbd631d1ba7fd54dba1ff4 patch
- https://github.com/ImageMagick/ImageMagick6/commit/95dc0fd21a684bfac2bdb6fb6638c0ab271adbe5 patch
- https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/coders/gif.c#L1168-L1196 technical-description
- https://github.com/ImageMagick/ImageMagick product
- VulnCheck Advisory: ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder third-party-advisory