Division by zero in ImageMagick - CVE-2021-20309
Published: May 9, 2022
Vulnerability identifier: #VU62868
CSH Severity: Medium
CVSS v4.0: 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-2021-20309
CWE-ID: CWE-369
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ImageMagick.org
Affected software:
ImageMagick
ImageMagick
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a division by zero error in the WaveImage() function in MagickCore/visual-effects.c . A remote attacker can pass specially crafted image file to the application and crash it.
How to mitigate CVE-2021-20309
Install update from vendor's website.