CVE-2020-27760

medium

Description

In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an impact to application availability. The patch uses the `PerceptibleReciprocal()` to prevent the divide-by-zero from occurring. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.

References

https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html

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

https://bugzilla.redhat.com/show_bug.cgi?id=1894239

Details

Source: Mitre, NVD

Published: 2020-12-03

Updated: 2023-03-11

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium