Several security issues were fixed in Apache HTTP Server.
Marek Kroemeke discovered that the mod_proxy module incorrectly handled certain requests. A remote attacker could use this issue to cause the server to stop responding, leading to a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-0117)
23 July 2014
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Apache HTTP Server.
Marek Kroemeke discovered that the mod_proxy module incorrectly handled certain requests. A remote attacker could use this issue to cause the server to stop responding, leading to a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-0117)
Giancarlo Pellegrino and Davide Balzarotti discovered that the mod_deflate module incorrectly handled body decompression. A remote attacker could use this issue to cause resource consumption, leading to a denial of service. (CVE-2014-0118)
Marek Kroemeke and others discovered that the mod_status module incorrectly handled certain requests. A remote attacker could use this issue to cause the server to stop responding, leading to a denial of service, or possibly execute arbitrary code. (CVE-2014-0226)
Rainer Jung discovered that the mod_cgid module incorrectly handled certain scripts. A remote attacker could use this issue to cause the server to stop responding, leading to a denial of service. (CVE-2014-0231)
The problem can be corrected by updating your system to the following package versions:
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.