CVE-2017-14103 Information

Description

The ReadJNGImage and ReadOneJNGImage functions in coders/png.c in GraphicsMagick 1.3.26 do not properly manage image pointers after certain error conditions which allows remote attackers to conduct use-after-free attacks via a crafted file related to a ReadMNGImage out-of-order CloseBlob call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-11403.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://hg.code.sf.net/p/graphicsmagick/code/rev/98721124e51f https://blogs.gentoo.org/ago/2017/09/01/graphicsmagick-use-after-free-in-closeblob-blob-c-incomplete-fix-for-cve-2017-11403/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8