CVE-2020-27760
Ubuntu Security Notice USN-7068-1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
En la función "GammaImage()" del archivo /MagickCore/enhance.c, dependiendo del valor de "gamma", es posible activar una condición de división por cero cuando ImageMagick procesa un archivo de entrada diseñado. Esto podría tener un impacto en la disponibilidad de la aplicación. El parche utiliza la función "PerceptibleReciprocal()" para evitar que ocurra la división por cero. Este fallo afecta a ImageMagick versiones anteriores a 7.0.8-68
It was discovered that ImageMagick incorrectly handled certain values when processing XPM image data or large images. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program. Suhwan Song discovered that ImageMagick incorrectly handled memory when processing PNG,PALM,MIFF image data. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-10-27 CVE Reserved
- 2020-12-03 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-369: Divide By Zero
CAPEC
References (3)
URL | Tag | Source |
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https://lists.debian.org/debian-lts-announce/2021/01/msg00010.html | Mailing List |
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https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html | Mailing List |
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URL | Date | SRC |
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URL | Date | SRC |
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https://bugzilla.redhat.com/show_bug.cgi?id=1894239 | 2023-03-11 |
URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Imagemagick Search vendor "Imagemagick" | Imagemagick Search vendor "Imagemagick" for product "Imagemagick" | < 6.9.10-68 Search vendor "Imagemagick" for product "Imagemagick" and version " < 6.9.10-68" | - |
Affected
| ||||||
Imagemagick Search vendor "Imagemagick" | Imagemagick Search vendor "Imagemagick" for product "Imagemagick" | >= 7.0.0-0 < 7.0.8-68 Search vendor "Imagemagick" for product "Imagemagick" and version " >= 7.0.0-0 < 7.0.8-68" | - |
Affected
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Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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