The WriteImages function in magick/constitute.c in ImageMagick before 6.9.2-4 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted image file.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Imagemagick | Imagemagick | * | 6.9.2-3 (including) |
| Red Hat Enterprise Linux 6 | RedHat | ImageMagick-0:6.7.2.7-5.el6_8 | * |
| Red Hat Enterprise Linux 7 | RedHat | ImageMagick-0:6.7.8.9-15.el7_2 | * |
| Imagemagick | Ubuntu | esm-infra-legacy/trusty | * |
| Imagemagick | Ubuntu | precise | * |
| Imagemagick | Ubuntu | trusty | * |
| Imagemagick | Ubuntu | trusty/esm | * |
| Imagemagick | Ubuntu | upstream | * |
| Imagemagick | Ubuntu | wily | * |
Potential Mitigations
References
- http://www.openwall.com/lists/oss-security/2016/06/02/13
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/91039
- https://access.redhat.com/errata/RHSA-2016:1237
- https://github.com/ImageMagick/ImageMagick/commit/5b4bebaa91849c592a8448bc353ab25a54ff8c44
- https://github.com/ImageMagick/ImageMagick/pull/34
- http://www.openwall.com/lists/oss-security/2016/06/02/13
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/91039
- https://access.redhat.com/errata/RHSA-2016:1237
- https://github.com/ImageMagick/ImageMagick/commit/5b4bebaa91849c592a8448bc353ab25a54ff8c44
- https://github.com/ImageMagick/ImageMagick/pull/34