CVE-2020-25667

2020-12-0800:00:00

ubuntu.com

tiffgetprofiles

out-of-bounds read

imagemagick

availability

patch

stringinfo

crafted input

debian

v6.9.10-63

v6.9.10-69

CVSS2

4.3

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

CVSS3

5.5

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

EPSS

0.001

Percentile

23.5%

JSON

TIFFGetProfiles() in /coders/tiff.c calls strstr() which causes a large
out-of-bounds read when it searches for "dc:format=\"image/dng\" within
profile due to improper string handling, when a crafted input file is
provided to ImageMagick. The patch uses a StringInfo type instead of a raw
C string to remedy this. This could cause an impact to availability of the
application. This flaw affects ImageMagick versions prior to 7.0.9-0.