Vulnerability identifier: #VU18365

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11007

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GraphicsMagick
Universal components / Libraries / Libraries used by multiple products

Vendor: GraphicsMagick Group

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read in the ReadMNGImage function of coders/png.c, which allows attackers to cause a denial of service or information disclosure via an image colormap. A remote attacker can perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GraphicsMagick: 1.4

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External links
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/40fc71472b98
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/86a9295e7c83
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00093.html
http://lists.debian.org/debian-lts-announce/2019/04/msg00015.html
http://sourceforge.net/p/graphicsmagick/bugs/596/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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