CVE-2020-27760

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
imagemagickimagemagick
𝑥
< 6.9.10-68
imagemagickimagemagick
7.0.0-0 ≤
𝑥
< 7.0.8-68
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
imagemagick
bullseye
8:6.9.11.60+dfsg-1.3+deb11u4
fixed
bullseye (security)
8:6.9.11.60+dfsg-1.3+deb11u3
fixed
bookworm
8:6.9.11.60+dfsg-1.6+deb12u2
fixed
bookworm (security)
8:6.9.11.60+dfsg-1.6+deb12u1
fixed
trixie
8:6.9.13.12+dfsg1-1
fixed
sid
8:7.1.1.39+dfsg1-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
imagemagick
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
Fixed 8:6.9.10.23+dfsg-2.1ubuntu13.3
released
focal
Fixed 8:6.9.10.23+dfsg-2.1ubuntu11.4
released
bionic
Fixed 8:6.9.7.4+dfsg-16ubuntu6.11
released
xenial
Fixed 8:6.8.9.9-7ubuntu5.16+esm2
released
trusty
needed
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1894239
https://lists.debian.org/debian-lts-announce/2021/01/msg00010.html
https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html
https://bugzilla.redhat.com/show_bug.cgi?id=1894239
https://lists.debian.org/debian-lts-announce/2021/01/msg00010.html
https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html