CVE-2020-25674

MEDIUM

Description

WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1891928

https://lists.debian.org/debian-lts-announce/2021/01/msg00010.html

Details

Source: MITRE

Published: 2020-12-08

Updated: 2021-03-04

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
145394openSUSE Security Update : ImageMagick (openSUSE-2021-148)NessusSuSE Local Security Checks
medium
145363SUSE SLES12 Security Update : ImageMagick (SUSE-SU-2021:0199-1)NessusSuSE Local Security Checks
medium
145361openSUSE Security Update : ImageMagick (openSUSE-2021-136)NessusSuSE Local Security Checks
medium
145198SUSE SLED15 / SLES15 Security Update : ImageMagick (SUSE-SU-2021:0153-1)NessusSuSE Local Security Checks
medium
145181SUSE SLED15 / SLES15 Security Update : ImageMagick (SUSE-SU-2021:0156-1)NessusSuSE Local Security Checks
medium
144925Debian DLA-2523-1 : imagemagick security updateNessusDebian Local Security Checks
medium