Ubuntu Security Notice (C) 2012-2015 Canonical, Inc. / NASL script (C) 2012-2015 Tenable Network Security, Inc.
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USN 1358-1 fixed multiple vulnerabilities in PHP. The fix for
CVE-2012-0831 introduced a regression where the state of the
magic_quotes_gpc setting was not correctly reflected when calling the
We apologize for the inconvenience.
It was discovered that PHP computed hash values for form parameters
without restricting the ability to trigger hash collisions
predictably. This could allow a remote attacker to cause a denial of
service by sending many crafted parameters. (CVE-2011-4885)
ATTENTION: this update changes previous PHP behavior by
limiting the number of external input variables to 1000.
This may be increased by adding a 'max_input_vars' directive
to the php.ini configuration file. See
input-vars for more information.
Stefan Esser discovered that the fix to address the
predictable hash collision issue, CVE-2011-4885, did not
properly handle the situation where the limit was reached.
This could allow a remote attacker to cause a denial of
service or execute arbitrary code via a request containing a
large number of variables. (CVE-2012-0830)
It was discovered that PHP did not always check the return
value of the zend_strndup function. This could allow a
remote attacker to cause a denial of service.
It was discovered that PHP did not properly enforce libxslt
security settings. This could allow a remote attacker to
create arbitrary files via a crafted XSLT stylesheet that
uses the libxslt output extension. (CVE-2012-0057)
It was discovered that PHP did not properly enforce that
PDORow objects could not be serialized and not be saved in a
session. A remote attacker could use this to cause a denial
of service via an application crash. (CVE-2012-0788)
It was discovered that PHP allowed the magic_quotes_gpc
setting to be disabled remotely. This could allow a remote
attacker to bypass restrictions that could prevent a SQL
USN 1126-1 addressed an issue where the /etc/cron.d/php5
cron job for PHP allowed local users to delete arbitrary
files via a symlink attack on a directory under
/var/lib/php5/. Emese Revfy discovered that the fix had not
been applied to PHP for Ubuntu 10.04 LTS. This update
corrects the issue. We apologize for the error.
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.5
Public Exploit Available : true
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 57932 ()
CVE ID: CVE-2011-0441CVE-2011-4153CVE-2011-4885CVE-2012-0057CVE-2012-0788CVE-2012-0830CVE-2012-0831
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