USN-2686-1: Apache HTTP Server vulnerabilities

27 July 2015

apache2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.04
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in the Apache HTTP server.

Software Description

  • apache2 - Apache HTTP server

Details

It was discovered that the Apache HTTP Server incorrectly parsed chunk headers. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks. (CVE-2015-3183)

It was discovered that the Apache HTTP Server incorrectly handled the ap_some_auth_required API. A remote attacker could possibly use this issue to bypass intended access restrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-3185)

Update instructions

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

Ubuntu 15.04
apache2.2-bin - 2.4.10-9ubuntu1.1
Ubuntu 14.04 LTS
apache2.2-bin - 2.4.7-1ubuntu4.5
Ubuntu 12.04 LTS
apache2.2-bin - 2.2.22-1ubuntu1.10

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.

References