#VU15744 Resource management error in nginx

Published: 2018-11-07

Vulnerability identifier: #VU15744

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16844


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Server applications / Web servers

Vendor: NGINX


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

The vulnerability exists due to excessive CPU usage when processing HTTP/2 requests within the ngx_http_v2_module module. A remote attacker can send specially crafted HTTP/2 requests to the affected web server and cause high CPU usage and perform a denial of service (DoS) attack.

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.15.0 - 1.15.5, 1.14.0, 1.13.0 - 1.13.12, 1.12.0 - 1.12.1, 1.11.0 - 1.11.13, 1.10.0 - 1.10.3, 1.9.5 - 1.9.15

External links

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.

Latest bulletins with this vulnerability