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[email protected]CVE-2020-27754

HistoryDec 08, 2020 - 10:15 p.m.

CVE-2020-27754

2020-12-0822:15:00

CWE-190

[email protected]

web.nvd.nist.gov

128

cve

imagemagick

intensitycompare

quantize.c

security vulnerability

overflow

nvd

3.3 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

4.9 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.001 Low

EPSS

Percentile

32.9%

JSON

In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69.

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