Reachable Assertion in GraphicsMagick

1) Reachable Assertion

EUVDB-ID: #VU33444

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14649

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

ReadOneJNGImage in coders/png.c in GraphicsMagick version 1.3.26 does not properly validate JNG data, leading to a denial of service (assertion failure in magick/pixel_cache.c, and application crash).

Mitigation

Install update from vendor's website.

Vulnerable software versions

GraphicsMagick: 1.3.26

External links

http://hg.code.sf.net/p/graphicsmagick/code/rev/358608a46f0a
http://www.securityfocus.com/bid/100958
http://blogs.gentoo.org/ago/2017/09/19/graphicsmagick-assertion-failure-in-pixel_cache-c/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PF62B5PJA2JDUOCKJGUQO3SPL74BEYSV/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHIKB4TP6KBJWT2UIPWL5MWMG5QXKGEJ/
http://sourceforge.net/p/graphicsmagick/bugs/439/
http://usn.ubuntu.com/4232-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.