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

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

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

Updated: 2024-08-04T15:40:36.922Z

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

Link: CVE-2020-25664

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T05:18:23.840

Link: CVE-2020-25664

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-10-04T00:00:00Z

Links: CVE-2020-25664 - Bugzilla