CVE-2016-4450

Publication date 31 May 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nginx	17.04 zesty	Fixed 1.10.1-0ubuntu1
	16.10 yakkety	Fixed 1.10.1-0ubuntu1
	16.04 LTS xenial	Fixed 1.10.0-0ubuntu0.16.04.2
	15.10 wily	Fixed 1.9.3-1ubuntu1.2
	14.04 LTS trusty	Fixed 1.4.6-1ubuntu3.5
	12.04 LTS precise	Ignored end of life

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://nginx.org/download/patch.2016.write.txt Upstream: http://nginx.org/download/patch.2016.write2.txt

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-2991-1
nginx vulnerability
2 June 2016