Description
Heap-based buffer overflow in the IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3.8 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted image file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9556.
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.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | ImageMagick | 6.8.8.1-54.1 | SUSE-SU-2016:3258-1 |
| SLES 12 SP1 | ImageMagick | 6.8.8.1-54.1 | SUSE-SU-2016:3258-1 |
| SLES 11 SP4 | ImageMagick | 6.4.3.6-7.60.1 | SUSE-SU-2016:3256-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | ImageMagick | 6.8.8.1-54.1 | SUSE-SU-2016:3258-1 |
| SLES for SAP 12 SP1 | ImageMagick | 6.8.8.1-54.1 | SUSE-SU-2016:3258-1 |
| SLES for SAP 11 SP4 | ImageMagick | 6.4.3.6-7.60.1 | SUSE-SU-2016:3256-1 |
Advisories 2
- SUSE-SU-2016:3256-1 Security update for ImageMagick SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3258-1 Security update for ImageMagick SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://blogs.gentoo.org/ago/2016/12/01/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-h-incomplete-fix-for-cve-2016-9556/
- [oss-security] 20161202 Re: Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556) mailing-list
- [oss-security] 20161201 imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556) mailing-list
- [oss-security] 20161202 Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556) mailing-list