Division by zero in ImageMagick

1) Division by zero

EUVDB-ID: #VU32024

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-11472

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

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

ReadXWDImage in coders/xwd.c in the XWD image parsing component of ImageMagick 7.0.8-41 Q16 allows attackers to cause a denial-of-service (divide-by-zero error) by crafting an XWD image file in which the header indicates neither LSB first nor MSB first.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ImageMagick: 5.5.0

CPE2.3

• cpe:2.3:a:imagemagick_org:imagemagick:5.5.0:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-security-announce/2019-06/msg00057.html
https://lists.opensuse.org/opensuse-security-announce/2019-07/msg00001.html
https://github.com/ImageMagick/ImageMagick/issues/1546
https://github.com/ImageMagick/ImageMagick6/commit/f663dfb8431c97d95682a2b533cca1c8233d21b4
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PF62B5PJA2JDUOCKJGUQO3SPL74BEYSV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHIKB4TP6KBJWT2UIPWL5MWMG5QXKGEJ/
https://usn.ubuntu.com/4034-1/
https://www.debian.org/security/2020/dsa-4712

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.