Ubuntu 17.04 Advisory 3340-1 Moderate: Apache DoS and Bypass Risks

ubuntu

June 26, 2017

Several security issues were fixed in Apache HTTP Server.

Summary

Several security issues were fixed in Apache HTTP Server.

Software Description:

- apache2: Apache HTTP server

Details:

Emmanuel Dreyfus discovered that third-party modules using the

ap_get_basic_auth_pw() function outside of the authentication phase may

lead to authentication requirements being bypassed. This update adds a new

ap_get_basic_auth_components() function for use by third-party modules.

(CVE-2017-3167)

Vasileios Panopoulos discovered that the Apache mod_ssl module may crash

when third-party modules call ap_hook_process_connection() during an HTTP

request to an HTTPS port. (CVE-2017-3169)

Javier Jiménez discovered that the Apache HTTP Server incorrectly handled

parsing certain requests. A remote attacker could possibly use this issue

to cause the Apache HTTP Server to crash, resulting in a denial of service.

(CVE-2017-7668)

ChenQin and Hanno Böck discovered that the Apache mod_mime module

incorrectly handled certain Content-Type response he...

Read the Full Advisory

Topics Covered

security advisory DoS Ubuntu update instructions application crash authentication bypass apache2

Update Instructions

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

Ubuntu 17.04:
  apache2-bin                     2.4.25-3ubuntu2.1

Ubuntu 16.10:
  apache2-bin                     2.4.18-2ubuntu4.2

Ubuntu 16.04 LTS:
  apache2-bin                     2.4.18-2ubuntu3.3

Ubuntu 14.04 LTS:
  apache2-bin                     2.4.7-1ubuntu4.16

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