Ubuntu Security Notice USN-3038-1
18th July, 2016
apache2 vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
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.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- 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
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.