CVE-2018-16845

Publication date 6 November 2018

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted mp4 file. The issue only affects nginx if it is built with the ngx_http_mp4_module (the module is not built by default) and the .mp4. directive is used in the configuration file. Further, the attack is only possible if an attacker is able to trigger processing of a specially crafted mp4 file with the ngx_http_mp4_module.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nginx	18.10 cosmic	Fixed 1.15.5-0ubuntu2.1
	18.04 LTS bionic	Fixed 1.14.0-0ubuntu1.2
	16.04 LTS xenial	Fixed 1.10.3-0ubuntu0.16.04.3
	14.04 LTS trusty	Fixed 1.4.6-1ubuntu3.9

Notes

mdeslaur

module is built in the nginx-extras package

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
nginx	Upstream: http://hg.nginx.org/nginx/rev/e5069816039b

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3812-1
nginx vulnerabilities
7 November 2018