[Secure-testing-team] Bug#825960: nginx: [CVE-2016-4450] NULL pointer dereference while writing client request body

[Christos Trochalakis]

Source: nginx
Version: 1.10.0-1
Severity: important
Tags: security

A problem was identified in nginx code responsible for saving
client request body to a temporary file.  A specially crafted request
might result in worker process crash due to a NULL pointer dereference
while writing client request body to a temporary file (CVE-2016-4450).

The problem affects nginx 1.3.9 - 1.11.0.

The problem is fixed in nginx 1.11.1, 1.10.1.

Patch for nginx 1.9.13 - 1.11.0 can be found here:

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

Patch for older nginx versions (1.3.9 - 1.9.12):

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

Upstream reference:
http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html?_ga=1.6487538.1331156843.1434132798