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USN-761-2: PHP vulnerabilities

27 April 2009

PHP vulnerabilities




USN-761-1 fixed vulnerabilities in PHP.
This update provides the corresponding updates for Ubuntu 9.04.

Original advisory details:

It was discovered that PHP did not sanitize certain error messages when
display_errors is enabled, which could result in browsers becoming
vulnerable to cross-site scripting attacks when processing the output.
With cross-site scripting vulnerabilities, if a user were tricked into
viewing server output during a crafted server request, a remote attacker
could exploit this to modify the contents, or steal confidential data
(such as passwords), within the same domain. (CVE-2008-5814)

It was discovered that PHP did not properly handle certain malformed
strings when being parsed by the json_decode function. A remote attacker
could exploit this flaw and cause the PHP server to crash, resulting in a
denial of service. This issue only affected Ubuntu 8.04 and 8.10.

Update instructions

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

Ubuntu 9.04

In general, a standard system upgrade is sufficient to effect the
necessary changes.

Related notices

  • USN-761-1: libapache2-mod-php5, php5-cgi, php5-cli, php5