CVE-2020-27760

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

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

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-27 CVE Reserved
2020-12-03 CVE Published
2023-08-19 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-369: Divide By Zero

CAPEC

References (3)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2021/01/msg00010.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1894239	2023-03-11

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
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
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