Input validation error in css-what - CVE-2021-33587
Published: May 16, 2023
Vulnerability identifier: #VU76183
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-33587
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
css-what
IBM Edge Application Manager
Bitbucket Data Center
Bitbucket Server
Ubuntu
node-css-what (Ubuntu package)
IBM Edge Application Manager
Bitbucket Data Center
Bitbucket Server
Ubuntu
node-css-what (Ubuntu package)
How to mitigate CVE-2021-33587
Install updates from vendor's website.
css-what - update to 5.0.1
Bitbucket Data Center - update to 8.19.25
Bitbucket Server - update to 8.19.25
node-css-what (Ubuntu package) - addressed in versions Ubuntu Pro, 2.1.0-1+deb10u1build0.18.04.1
Bitbucket Data Center - update to 8.19.25
Bitbucket Server - update to 8.19.25
node-css-what (Ubuntu package) - addressed in versions Ubuntu Pro, 2.1.0-1+deb10u1build0.18.04.1