Ubuntu 16.04 LTS USN-3038-1 Moderate: Apache DoS Risk Issue

ubuntu

July 18, 2016

A security issue was fixed in the Apache HTTP Server.

Summary

A security issue was fixed in the Apache HTTP Server.

Software Description:

- apache2: Apache HTTP server

Details:

It was discovered that the Apache HTTP Server would set the HTTP_PROXY

environment variable based on the contents of the Proxy header from HTTP

requests. A remote attacker could possibly use this issue in combination

with CGI scripts that honour the HTTP_PROXY variable to redirect outgoing

HTTP requests.

Topics Covered

security advisory remote code execution DoS update instructions ubuntu apache server severity: moderate

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  apache2-bin                     2.4.18-2ubuntu3.1

Ubuntu 15.10:
  apache2-bin                     2.4.12-2ubuntu2.1

Ubuntu 14.04 LTS:
  apache2.2-bin                   2.4.7-1ubuntu4.13

Ubuntu 12.04 LTS:
  apache2.2-bin                   2.2.22-1ubuntu1.11

In general, a standard system update will make all the necessary changes.