Ubuntu Security Notice (C) 2007-2015 Canonical, Inc. / NASL script (C) 2007-2015 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related patches.
USN-424-1 fixed vulnerabilities in PHP. However, some upstream changes
were not included, which caused errors in the stream filters. This
update fixes the problem.
We apologize for the inconvenience.
Multiple buffer overflows have been discovered in various PHP modules.
If a PHP application processes untrusted data with functions of the
session or zip module, or various string functions, a remote attacker
could exploit this to execute arbitrary code with the privileges of
the web server. (CVE-2007-0906)
The sapi_header_op() function had a buffer underflow that
could be exploited to crash the PHP interpreter.
The wddx unserialization handler did not correctly check for
some buffer boundaries and had an uninitialized variable. By
unserializing untrusted data, this could be exploited to
expose memory regions that were not meant to be accessible.
Depending on the PHP application this could lead to
disclosure of potentially sensitive information.
On 64 bit systems (the amd64 and sparc platforms), various
print functions and the odbc_result_all() were susceptible
to a format string vulnerability. A remote attacker could
exploit this to execute arbitrary code with the privileges
of the web server. (CVE-2007-0909)
Under certain circumstances it was possible to overwrite
superglobal variables (like the HTTP GET/POST arrays) with
crafted session data. (CVE-2007-0910)
When unserializing untrusted data on 64-bit platforms the
zend_hash_init() function could be forced to enter an
infinite loop, consuming CPU resources, for a limited length
of time, until the script timeout alarm aborts the script.
Update the affected packages.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.7
Public Exploit Available : true