In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2020-12-08T20:57:44

Updated: 2021-12-05T03:06:05

Reserved: 2020-09-16T00:00:00


Link: CVE-2020-25664

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2020-12-08T21:15:12.497

Modified: 2023-11-07T03:20:20.253


Link: CVE-2020-25664

JSON object: View

cve-icon Redhat Information

No data.

CWE