USN-1903-1: Apache HTTP Server vulnerabilities

Ubuntu Security Notice USN-1903-1

15th July, 2013

apache2 vulnerabilities

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in the Apache HTTP Server.

Software description

  • apache2 - Apache HTTP server

Details

It was discovered that the mod_rewrite module incorrectly sanitized non-
printable characters before writing data to log files. A remote attacker
could possibly use this flaw to execute arbitrary commands by injecting
escape sequences in the log file. (CVE-2013-1862)

It was discovered that the mod_dav module incorrectly handled certain MERGE
requests. A remote attacker could use this issue to cause the server to
stop responding, resulting in a denial of service. (CVE-2013-1896)

Update instructions

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

Ubuntu 13.04:
apache2.2-common 2.2.22-6ubuntu5.1
Ubuntu 12.10:
apache2.2-common 2.2.22-6ubuntu2.3
Ubuntu 12.04 LTS:
apache2.2-common 2.2.22-1ubuntu1.4
Ubuntu 10.04 LTS:
apache2.2-common 2.2.14-5ubuntu8.12

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

CVE-2013-1862, CVE-2013-1896