ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an incomplete cleanup flaw in the JNG decoder that fails to remove temporary files when processing crafted input. Attackers can submit crafted JNG files for processing to repeatedly leak temporary files, consuming disk space and degrading availability.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
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/b2d579d20cc503185b6e8b0bc2dfb…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-f983-243h-9…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick6/commit/3875281ca0c5aa67b2bf0454725a…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/imagemagick-before-6.9.13-57-and-7-x-befor…
disclosure@vulncheck.com