CVE-2020-25664CWE-122

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…

published December 8, 2020

CVSS
—
EPSS
1%
Percentile
53.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00719 · 53.3th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2020-12-08T20:57Z
EPSS history
Timeline
  • 08 DEC 20:57Z
    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…
    cvelistv5