Division by zero in ImageMagick

1) Division by zero

EUVDB-ID: #VU62866

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-20310

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

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

The vulnerability exists due to a division by zero error within the ConvertXYZToJzazbz() function in MagickCore/colorspace.c. A remote attacker can pass a specially crafted image file to the application and crash it.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.0-0 - 7.0.10-62

CPE2.3

• cpe:2.3:a:imagemagick_org:imagemagick:7.0.0-0:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-0:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-1:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-2:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-3:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-4:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-5:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-6:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-7:*:*:*:*:*:*:*
• cpe:2.3:a:imagemagick_org:imagemagick:7.0.1-8:*:*:*:*:*:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=1946728
https://github.com/ImageMagick/ImageMagick/issues/3295
https://github.com/ImageMagick/ImageMagick/commit/75f6f5032690077cae3eaeda3c0165cc765eaeb5

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.