#VU32825 Input validation error in Apache HTTP Server - CVE-2012-0021

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Main Vulnerability Database Vulnerabilities #VU32825

#VU32825 Input validation error in Apache HTTP Server - CVE-2012-0021

Published: January 28, 2012 / Updated: July 28, 2020


Vulnerability identifier: #VU32825
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-0021
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Apache HTTP Server
Software vendor:
Apache Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.


Remediation

Install update from vendor's website.

External links