CVE-2021-37220 Information

Description

MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can for example be seen with crafted \mutool draw\ input.

CVSS Vector

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

Reference

https://bugs.ghostscript.com/show_bug.cgi?id=703791 http://git.ghostscript.com/?p=mupdf.git;h=f5712c9949d026e4b891b25837edd2edc166151f https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TKRMREIYUBGG2GV73CU7BJNW2Q34IP23/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5