Ubuntu Security Notice USN-2686-1
27th 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 version:
- 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.