#VU10953 Improper input validation in Apache HTTP Server - CVE-2016-8612

Vulnerability identifier: #VU10953

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-8612

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the mod_cluster module due to improper input validation by the protocol parsing logic in the mod_cluster module. An adjacent attacker can send a specially crafted request, trigger a segmentation fault in the serving httpdprocess and cause the service to crash.

Mitigation
Update to version 2.4.23.

Vulnerable software versions

Apache HTTP Server: 2.4.0.0 - 2.4.22

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External links
https://access.redhat.com/errata/RHSA-2016:2957

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.