#VU7116 NULL pointer dereference


Published: 2020-03-18 | Updated: 2020-04-07

Vulnerability identifier: #VU7116

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2017-3169

CWE-ID: CWE-592

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform denial of service attack.

The vulnerability exists due to a NULL pointer dereference error within mod_ssl module, when third-party modules call ap_hook_process_connection() function during an HTTP request to an HTTPS port. A remote attacker can send a specially crafted HTTP request and crash the affected web server.

Mitigation
Update Apache HTTP server to version 2.2.34 or 2.4.26.

Vulnerable software versions

Apache HTTP Server: 2.2.0 - 2.4.25


CPE

External links
http://httpd.apache.org/security/vulnerabilities_22.html


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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