CVE-2020-27756
mediumpriority · track · 22EPSS 0.008 · 58 %ileDEEURUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (14)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-0622ImageMagick: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2020-12-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um einen Denial of Service Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://bugzilla.redhat.com/show_bug.cgi?id=1894233cnnvd
- https://github.com/ImageMagick/ImageMagick/commit/f0a8d407b2801174fd8923941a9e7822f7f9a506Patchcnnvd
- https://lists.debian.org/debian-lts-announce/2023/03/msg00008.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-27756cnnvd
- https://packetstormsecurity.com/files/163152/Ubuntu-Security-Notice-USN-4988-1.htmlcnnvd
- https://vigilance.fr/vulnerability/ImageMagick-multiple-vulnerabilities-34358cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.0205/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2130cnnvd
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