Improper input validation in Apache HTTP Server - CVE-2016-2161
Published: December 21, 2016 / Updated: June 8, 2017
Vulnerability identifier: #VU1886
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-2016-2161
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache HTTP Server
Apache HTTP Server
Detailed vulnerability description
The vulnerability allows a remote attacker to cause denial of service attack.
The vulnerability exists due to input validation error in mod_auth_digest module when parsing malicious HTTP requests. A remote attacker can send a specially crafted HTTP request to affected server and cause server crash.
Successful exploitation of the vulnerability will result in crash of each server instance.
The vulnerability exists due to input validation error in mod_auth_digest module when parsing malicious HTTP requests. A remote attacker can send a specially crafted HTTP request to affected server and cause server crash.
Successful exploitation of the vulnerability will result in crash of each server instance.
How to mitigate CVE-2016-2161
Install the latest version Apache HTTP Server 2.4.25.