CVE-2020-27756

In ParseMetaGeometry() of MagickCore/geometry.c, image height and width calculations can lead to divide-by-zero conditions which also lead to undefined behavior. This flaw can be triggered by a crafted input file processed by ImageMagick and could impact application availability. The patch uses multiplication in addition to the function `PerceptibleReciprocal()` in order to prevent such divide-by-zero conditions. This flaw affects ImageMagick versions prior to 7.0.9-0.
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
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
VendorProductVersion
imagemagickimagemagick
6.9.9-34 ≤
𝑥
< 6.9.10-69
imagemagickimagemagick
7.0.0-0 ≤
𝑥
< 7.0.9-0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
imagemagick
bullseye
8:6.9.11.60+dfsg-1.3+deb11u4
fixed
stretch
not-affected
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
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
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1894233
https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html
https://bugzilla.redhat.com/show_bug.cgi?id=1894233
https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html