ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the PNG encoder, which does not release allocated memory when libpng initialization fails. Attackers who can repeatedly trigger PNG encoding operations in which libpng initialization fails can exhaust memory and cause a denial of service.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/ImageMagick/ImageMagick/commit/fd1b9c85f2634e34034d39016ed75…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-hvwf-wmm6-h…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick6/commit/55346382cebdf5c5fa6c544a7df7…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/imagemagick-before-6.9.13-57-and-7-x-befor…
disclosure@vulncheck.com