Input validation error in Rack - CVE-2023-27539

 

Input validation error in Rack - CVE-2023-27539

Published: March 30, 2023


Vulnerability identifier: #VU74199
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2023-27539
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Rack
Affected software:
Rack

Detailed vulnerability description

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 when parsing HTTP headers. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


How to mitigate CVE-2023-27539

Install updates from vendor's website.

Sources