Description
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attacker able to induce concurrent security policy access can crash the application, causing a denial of service.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
ImageMagick ImageMagick
Default version status: unaffected
7.0.0-0 to < 7.1.2-32affected7.1.2-32unaffected
ImageMagick ImageMagick
Default version status: unaffected
0 to < 6.9.13-57affected6.9.13-57unaffected
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8x3v-wr32-qqh4 ↗
- https://github.com/ImageMagick/ImageMagick/commit/12db6f04e895deae4537ead10c771a244607794a ↗
- https://github.com/ImageMagick/ImageMagick6/commit/9ddc71abea5cbe7d18164fa0f0077a105cab514f ↗
- https://www.vulncheck.com/advisories/imagemagick-before-6.9.13-57-and-7-x-before-7.1.2-32-heap-buffer-overflow-via-concurrent-security-policy-access ↗