{"schemaVersion":3,"id":"CVE-2020-25664","aliases":["UBUNTU-CVE-2020-25664","DEBIAN-CVE-2020-25664"],"status":"published","duplicateOf":null,"title":null,"description":"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. 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