USN-3340-1: Apache HTTP Server vulnerabilities

Releases

• Ubuntu 17.04
• Ubuntu 16.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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 headers. A remote
attacker could possibly use this issue to cause the Apache HTTP Server to
crash, resulting in a denial of service. (CVE-2017-7679)

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

• apache2-bin - 2.4.18-2ubuntu3.3

Ubuntu 14.04

• apache2-bin - 2.4.7-1ubuntu4.16

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

References

• CVE-2017-3167
• CVE-2017-3169
• CVE-2017-7668
• CVE-2017-7679

Related notices

• USN-3373-1: apache2, apache2.2-bin