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[email protected]CVE-2020-27760

HistoryDec 03, 2020 - 5:15 p.m.

CVE-2020-27760

2020-12-0317:15:12

CWE-369

[email protected]

web.nvd.nist.gov

126

imagemagick

cve-2020-27760

enhance.c

vulnerability

divide-by-zero

patch

perceptiblereciprocal

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

31.5%

JSON

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.

Affected configurations

Vulners

NVD

Node

imagemagickimagemagickRange≤7.0.8

VendorProductVersionCPE
imagemagickimagemagick*cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
imagemagick	imagemagick	*	cpe:2.3:a:imagemagick:imagemagick::::::::

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "ImageMagick",
    "versions": [
      {
        "version": "ImageMagick 7.0.8-68",
        "status": "affected"
      }
    ]
  }
]