PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.

According to its banner, the version of PHP installed on the remote host is 5.4.x earlier than 5.4.0, and, therefore, potentially affected by multiple vulnerabilities :

  - crypt_blowfish as used in PHP does not properly handle     8-bit characters, which makes it easier for     context-dependent attackers to determine a cleartext     password by leveraging knowledge of a password hash.
    (CVE-2011-2483)

  - Multiple NULL Pointer Dereference with the     zend_strndup() fucntion could allow a remote attacker     to cause a denial of service. (CVE-2011-4153)

  - A flaw in SSL sockets with SSL 3.0 / TLS 1.0 was     addressed. (CVE-2011-3389)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

From Red Hat Security Advisory 2012:1047 :

Updated php53 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0547, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of CVE-2012-2143.

All php53 users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

From Red Hat Security Advisory 2012:1046 :

Updated php packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0546, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

A NULL pointer dereference flaw was found in the PHP tidy_diagnose() function. A remote attacker could use specially crafted input to crash an application that uses tidy::diagnose. (CVE-2012-0781)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of CVE-2012-2143.

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

From Red Hat Security Advisory 2012:1045 :

Updated php packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0546, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Updated php53 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0547, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of CVE-2012-2143.

All php53 users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via a previous update, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

A NULL pointer dereference flaw was found in the PHP tidy_diagnose() function. A remote attacker could use specially crafted input to crash an application that uses tidy::diagnose. (CVE-2012-0781)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

It was discovered that the fix for CVE-2012-1823, released via a previous update, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via a previous update, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

All php53 users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Updated php packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the PHP phar extension processed certain fields of tar archive files. A remote attacker could provide a specially crafted tar archive file that, when processed by a PHP application using the phar extension, could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running PHP. (CVE-2012-2386)

A format string flaw was found in the way the PHP phar extension processed certain PHAR files. A remote attacker could provide a specially crafted PHAR file, which once processed in a PHP application using the phar extension, could lead to information disclosure and possibly arbitrary code execution via a crafted phar:// URI.
(CVE-2010-2950)

A flaw was found in the DES algorithm implementation in the crypt() password hashing function in PHP. If the password string to be hashed contained certain characters, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. (CVE-2012-2143)

Note: With this update, passwords are no longer truncated when performing DES hashing. Therefore, new hashes of the affected passwords will not match stored hashes generated using vulnerable PHP versions, and will need to be updated.

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0546, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to execute the script in a loop, or output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

A NULL pointer dereference flaw was found in the PHP tidy_diagnose() function. A remote attacker could use specially crafted input to crash an application that uses tidy::diagnose. (CVE-2012-0781)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of CVE-2012-2143.

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

According to the web server's banner, the version of HP System Management Homepage (SMH) hosted on the remote host is earlier than 7.1.1 and is, therefore, reportedly affected by the following vulnerabilities :

  - The bundled version of the libxml2 library contains     multiple vulnerabilities. (CVE-2011-1944, CVE-2011-2821,     CVE-2011-2834)

  - The bundled version of PHP contains multiple     vulnerabilities. (CVE-2011-3379, CVE-2011-4153,     CVE-2011-4885, CVE-2012-1823, CVE-2012-0057,     CVE-2012-0830)

  - The bundled version of the Apache HTTP Server contains     multiple vulnerabilities. (CVE-2011-3607, CVE-2011-4317,     CVE-2011-4415, CVE-2012-0021, CVE-2012-0031,     CVE-2012-0053)

  - An issue exists in the 'include/iniset.php' script in     the embedded RoundCube Webmail version that could lead     to a denial of service. (CVE-2011-4078)

  - The bundled version of OpenSSL contains multiple     vulnerabilities. (CVE-2011-4108, CVE-2011-4576,     CVE-2011-4577, CVE-2011-4619, CVE-2012-0027,     CVE-2012-1165)

  - The bundled version of curl and libcurl does not     properly consider special characters during extraction     of a pathname from a URL. (CVE-2012-0036)     
  - An off autocomplete attribute does not exist for     unspecified form fields, which makes it easier for     remote attackers to obtain access by leveraging an     unattended workstation. (CVE-2012-2012)

  - An unspecified vulnerability exists that could allow a     remote attacker to cause a denial of service, or     possibly obtain sensitive information or modify data.
    (CVE-2012-2013)

  - An unspecified vulnerability exists related to improper     input validation. (CVE-2012-2014)

  - An unspecified vulnerability allows remote,     unauthenticated users to gain privileges and obtain     sensitive information. (CVE-2012-2015)

  - An unspecified vulnerability allows local users to     obtain sensitive information via unknown vectors.
    (CVE-2012-2016)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:1046 advisory.

  - php: Format string flaw in phar extension via phar_stream_flush() (MOPS-2010-024) (CVE-2010-2950)

  - php: zend_strndup() NULL pointer dereference may cause DoS (CVE-2011-4153)

  - php: XSLT file writing vulnerability (CVE-2012-0057)

  - php: tidy_diagnose() NULL pointer dereference may cause DoS (CVE-2012-0781)

  - php: strtotime timezone memory leak (CVE-2012-0789)

  - php: $_FILES array indexes corruption (CVE-2012-1172)

  - BSD crypt(): DES encrypted password weakness (CVE-2012-2143)

  - php: incomplete CVE-2012-1823 fix - missing filtering of -T and -h (CVE-2012-2336)

  - php: Integer overflow leading to heap-buffer overflow in the Phar extension (CVE-2012-2386)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated php packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

It was discovered that the PHP XSL extension did not restrict the file writing capability of libxslt. A remote attacker could use this flaw to create or overwrite an arbitrary file that is writable by the user running PHP, if a PHP script processed untrusted eXtensible Style Sheet Language Transformations (XSLT) content. (CVE-2012-0057)

Note: This update disables file writing by default. A new PHP configuration directive, 'xsl.security_prefs', can be used to enable file writing in XSLT.

A flaw was found in the way PHP validated file names in file upload requests. A remote attacker could possibly use this flaw to bypass the sanitization of the uploaded file names, and cause a PHP script to store the uploaded file in an unexpected directory, by using a directory traversal attack. (CVE-2012-1172)

It was discovered that the fix for CVE-2012-1823, released via RHSA-2012:0546, did not properly filter all php-cgi command line arguments. A specially crafted request to a PHP script could cause the PHP interpreter to output usage information that triggers an Internal Server Error. (CVE-2012-2336)

A memory leak flaw was found in the PHP strtotime() function call. A remote attacker could possibly use this flaw to cause excessive memory consumption by triggering many strtotime() function calls.
(CVE-2012-0789)

It was found that PHP did not check the zend_strndup() function's return value in certain cases. A remote attacker could possibly use this flaw to crash a PHP application. (CVE-2011-4153)

All php users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

This update of php5 fixes multiple security flaws :

  - A php5 upload filename injection was fixed.
    (CVE-2011-2202)

  - A integer overflow in the EXIF extension was fixed that     could be used by attackers to crash the interpreter or     potentially read memory. (CVE-2011-4566)

  - Multiple NULL pointer dereferences were fixed that could     lead to crashes. (CVE-2011-3182)

  - An integer overflow in the PHP calendar extension was     fixed that could have led to crashes. (CVE-2011-1466)

  - A symlink vulnerability in the PEAR installer could be     exploited by local attackers to inject code.
    (CVE-2011-1072)

  - missing checks of return values could allow remote     attackers to cause a denial of service (NULL pointer     dereference). (CVE-2011-4153)

  - denial of service via hash collisions. (CVE-2011-4885)

  - specially crafted XSLT stylesheets could allow remote     attackers to create arbitrary files with arbitrary     content. (CVE-2012-0057)

  - remote attackers can cause a denial of service via     specially crafted input to an application that attempts     to perform Tidy::diagnose operations. (CVE-2012-0781)

  - applications that use a PDO driver were prone to denial     of service flaws which could be exploited remotely.
    (CVE-2012-0788)

  - memory leak in the timezone functionality could allow     remote attackers to cause a denial of service (memory     consumption). (CVE-2012-0789)

  - a stack-based buffer overflow in the php5 Suhosin     extension could allow remote attackers to execute     arbitrary code via a long string that is used in a     Set-Cookie HTTP header. (CVE-2012-0807)

  - this fixes an incorrect fix for CVE-2011-4885 which     could allow remote attackers to execute arbitrary code     via a request containing a large number of variables.
    (CVE-2012-0830)

  - temporary changes to the magic_quotes_gpc directive     during the importing of environment variables is not     properly performed which makes it easier for remote     attackers to conduct SQL injections. (CVE-2012-0831)

Also the following bugs have been fixed :

  - allow uploading files bigger than 2GB for 64bit systems     [bnc#709549]

  - amend README.SUSE to discourage using apache module with     apache2-worker [bnc#728671]

This update of PHP5 fixes multiple security flaws :

  - missing checks of return values could allow remote     attackers to cause a denial of service (NULL pointer     dereference). (CVE-2011-4153)

  - specially crafted XSLT stylesheets could allow remote     attackers to create arbitrary files with arbitrary     content. (CVE-2012-0057)

  - a stack-based buffer overflow in php5's Suhosin     extension could allow remote attackers to execute     arbitrary code via a long string that is used in a     Set-Cookie HTTP header. (CVE-2012-0807)

  - temporary changes to the magic_quotes_gpc directive     during the importing of environment variables is not     properly performed which makes it easier for remote     attackers to conduct SQL injections. (CVE-2012-0831)

This update of php5 fixes multiple security flaws :

  - missing checks of return values could allow remote     attackers to cause a denial of service (NULL pointer     dereference). (CVE-2011-4153)

  - denial of service via hash collisions. (CVE-2011-4885)

  - specially crafted XSLT stylesheets could allow remote     attackers to create arbitrary files with arbitrary     content. (CVE-2012-0057)

  - remote attackers can cause a denial of service via     specially crafted input to an application that attempts     to perform Tidy::diagnose operations. (CVE-2012-0781)

  - applications that use a PDO driver were prone to denial     of service flaws which could be exploited remotely.
    (CVE-2012-0788)

  - memory leak in the timezone functionality could allow     remote attackers to cause a denial of service (memory     consumption). (CVE-2012-0789)

  - a stack-based buffer overflow in php5's Suhosin     extension could allow remote attackers to execute     arbitrary code via a long string that is used in a     Set-Cookie HTTP header. (CVE-2012-0807)

  - this fixes an incorrect fix for CVE-2011-4885 which     could allow remote attackers to execute arbitrary code     via a request containing a large number of variables.
    (CVE-2012-0830)

  - temporary changes to the magic_quotes_gpc directive     during the importing of environment variables is not     properly performed which makes it easier for remote     attackers to conduct SQL injections. (CVE-2012-0831)

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 ini_get() function.

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 http://www.php.net/manual/en/info.configuration.php#ini.max- 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.
(CVE-2011-4153)

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 injection. (CVE-2012-0831)

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.
(CVE-2011-0441).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several vulnerabilities have been discovered in PHP, the web scripting language. The Common Vulnerabilities and Exposures project identifies the following issues :

  - CVE-2011-1072     It was discovered that insecure handling of temporary     files in the PEAR installer could lead to denial of     service.

  - CVE-2011-4153     Maksymilian Arciemowicz discovered that a NULL pointer     dereference in the zend_strndup() function could lead to     denial of service.

  - CVE-2012-0781     Maksymilian Arciemowicz discovered that a NULL pointer     dereference in the tidy_diagnose() function could lead     to denial of service.

  - CVE-2012-0788     It was discovered that missing checks in the handling of     PDORow objects could lead to denial of service.

  - CVE-2012-0831     It was discovered that the magic_quotes_gpc setting     could be disabled remotely.

This update also addresses PHP bugs, which are not treated as security issues in Debian (see README.Debian.security), but which were fixed nonetheless: CVE-2010-4697, CVE-2011-1092, CVE-2011-1148, CVE-2011-1464, CVE-2011-1467 CVE-2011-1468, CVE-2011-1469, CVE-2011-1470, CVE-2011-1657, CVE-2011-3182 CVE-2011-3267

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 http://www.php.net/manual/en/info.configuration.php#ini.max-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. (CVE-2011-4153)

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 injection. (CVE-2012-0831)

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. (CVE-2011-0441).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
122590	PHP 5.4.x < 5.4.0 Multiple Vulnerabilities	Nessus	CGI abuses	high
74580	openSUSE Security Update : php5 (openSUSE-SU-2012:0426-1)	Nessus	SuSE Local Security Checks	high
68571	Oracle Linux 5 : php53 (ELSA-2012-1047)	Nessus	Oracle Linux Local Security Checks	high
68570	Oracle Linux 6 : php (ELSA-2012-1046)	Nessus	Oracle Linux Local Security Checks	high
68569	Oracle Linux 5 : php (ELSA-2012-1045)	Nessus	Oracle Linux Local Security Checks	medium
67089	CentOS 5 : php53 (CESA-2012:1047)	Nessus	CentOS Local Security Checks	high
61358	Scientific Linux Security Update : php on SL6.x i386/x86_64 (20120627)	Nessus	Scientific Linux Local Security Checks	high
61357	Scientific Linux Security Update : php on SL5.x i386/x86_64 (20120627)	Nessus	Scientific Linux Local Security Checks	medium
61356	Scientific Linux Security Update : php53 on SL5.x i386/x86_64 (20120627)	Nessus	Scientific Linux Local Security Checks	high
59938	CentOS 6 : php (CESA-2012:1046)	Nessus	CentOS Local Security Checks	high
59851	HP System Management Homepage < 7.1.1 Multiple Vulnerabilities	Nessus	Web Servers	critical
59753	RHEL 5 : php53 (RHSA-2012:1047)	Nessus	Red Hat Local Security Checks	high
59752	RHEL 6 : php (RHSA-2012:1046)	Nessus	Red Hat Local Security Checks	critical
59751	RHEL 5 : php (RHSA-2012:1045)	Nessus	Red Hat Local Security Checks	medium
59738	CentOS 5 : php (CESA-2012:1045)	Nessus	CentOS Local Security Checks	medium
58740	SuSE 11.1 Security Update : PHP5 (SAT Patch Number 5964)	Nessus	SuSE Local Security Checks	high
58615	SuSE 11.2 Security Update : PHP5 (SAT Patch Number 5958)	Nessus	SuSE Local Security Checks	medium
58480	SuSE 10 Security Update : PHP5 (ZYPP Patch Number 8009)	Nessus	SuSE Local Security Checks	high
57932	Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : php5 regression (USN-1358-2)	Nessus	Ubuntu Local Security Checks	high
57925	Debian DSA-2408-1 : php5 - several vulnerabilities	Nessus	Debian Local Security Checks	high
57888	Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : php5 vulnerabilities (USN-1358-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2011-4153

high

Tenable Plugins

high

high

high

high

medium

high

high

medium

high

high

critical

high

critical

medium

medium

high

medium

high

high

high

high