#VU14739 Reachable Assertion in ImageMagick - CVE-2018-16749

Vulnerability identifier: #VU14739

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16749

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

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

The vulnerability exists due to a missing NULL check in ReadOneJNGImage() function in coders/png.c. A remote attacker can trigger an assertion failure with a specially crafted image file and crash the vulnerable application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.7-0 Q16 - 7.0.7-29

---

External links
https://github.com/ImageMagick/ImageMagick/issues/1119
https://github.com/ImageMagick/ImageMagick6/commit/1007b98f8795ad4bea6bc5f68a32d83e982fdae4

---

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.