GraphicsMagick 1.3.28 MNG File coders/png.c ReadMNGImage denial of service

A vulnerability, which was classified as problematic, has been found in GraphicsMagick 1.3.28 (Image Processing Software). Affected by this issue is the function ReadMNGImage of the file coders/png.c of the component MNG File Handler. Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.