Vulnerability identifier: #VU13907

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8011

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

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

The vulnerability exists due to improper filtering of input data within "mod_md" apache module when processing requests. A remote attacker can send a specially crafted HTTP request to the affected web server and trigger denial of service condition via coredumps.

Mitigation
Update to version 2.4.34.

Vulnerable software versions

Apache HTTP Server: 2.4.0 - 2.4.33

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External links
http://www.apache.org/dist/httpd/CHANGES_2.4

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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 Internet.

Is there known malware, which exploits this vulnerability?

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