Race condition in the PCNTL extension in PHP before 5.3.4, when a user-defined signal handler exists, might allow context-dependent attackers to cause a denial of service (memory corruption) via a large number of concurrent signals.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Race condition in the PCNTL extension in PHP before 5.3.4, when a user-defined signal handler exists,     might allow context-dependent attackers to cause a denial of service (memory corruption) via a large     number of concurrent signals. (CVE-2011-0753)

Note that Nessus relies on the presence of the package as reported by the vendor.

php5 was updated to fix several security issues. (CVE-2010-3709, CVE-2010-4150, CVE-2010-4645, CVE-2010-4697, CVE-2010-4698, CVE-2010-4699, CVE-2010-4700, CVE-2011-0752, CVE-2011-0753, CVE-2011-0755,CVE-2011-0708, CVE-2011-0420)

PHP5 was updated to fix several security issues. (CVE-2010-4150 / CVE-2010-4645 / CVE-2010-4697 / CVE-2010-4698 / CVE-2010-4699 / CVE-2011-0708 / CVE-2011-0752 / CVE-2011-0753 / CVE-2011-0755)

The remote host is affected by the vulnerability described in GLSA-201110-06 (PHP: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PHP. Please review the       CVE identifiers referenced below for details.
  Impact :

    A context-dependent attacker could execute arbitrary code, obtain       sensitive information from process memory, bypass intended access       restrictions, or cause a Denial of Service in various ways.
    A remote attacker could cause a Denial of Service in various ways,       bypass spam detections, or bypass open_basedir restrictions.
  Workaround :

    There is no known workaround at this time.

php5 was updated to fix several security issues.

PHP5 was updated to fix several security issues.

According to its banner, the version of PHP 5.3 installed on the remote host is older than 5.3.4.  Such versions may be affected by several security issues :

  - A crash in the zip extract method.

  - A stack-based buffer overflow in impagepstext()     of the GD extension.

  - An unspecified vulnerability related to     symbolic resolution when using a DFS share.

  - A security bypass vulnerability related     to using pathnames containing NULL bytes.
    (CVE-2006-7243)

  - Multiple format string vulnerabilities.
    (CVE-2010-2094, CVE-2010-2950)

  - An unspecified security bypass vulnerability     in open_basedir(). (CVE-2010-3436)

  - A NULL pointer dereference in     ZipArchive::getArchiveComment. (CVE-2010-3709)

  - Memory corruption in php_filter_validate_email().
    (CVE-2010-3710)

  - An input validation vulnerability in     xml_utf8_decode(). (CVE-2010-3870)

  - A possible double free in the IMAP extension.
    (CVE-2010-4150)

  - An information disclosure vulnerability in     'mb_strcut()'. (CVE-2010-4156)

  - An integer overflow vulnerability in 'getSymbol()'.
    (CVE-2010-4409)

  - A use-after-free vulnerability in the Zend engine when     a '__set()', '__get()', '__isset()' or '__unset()'     method is called can allow for a denial of service     attack. (Bug #52879 / CVE-2010-4697)

  - A stack-based buffer overflow exists in the     'imagepstext()' function in the GD extension. (Bug     #53492 / CVE-2010-4698)

  - The 'iconv_mime_decode_headers()' function in the iconv     extension fails to properly handle encodings that are     not recognized by the iconv and mbstring     implementations. (Bug #52941 / CVE-2010-4699)

  - The 'set_magic_quotes_runtime()' function when the     MySQLi extension is used does not properly interact     with the 'mysqli_fetch_assoc()' function. (Bug #52221 /     CVE-2010-4700)

  - A race condition exists in the PCNTL extension.
    (CVE-2011-0753)

  - The SplFileInfo::getType function in the Standard PHP     Library extension does not properly detect symbolic     links. (CVE-2011-0754)

  - An integer overflow exists in the mt_rand function.
    (CVE-2011-0755)

According to its banner the version of PHP installed on the remote host is 5.3.x earlier than 5.3.4.  Such versions are potentially affected by multiple vulnerabilities :

  - A crash in the zip extract method.
  - A stack buffer overflow in impagepstext() of the GD extension.
  - An unspecified vulnerability related to symbolic resolution when using a DFS share.
  - A security bypass vulnerability related to using pathnames containing NULL bytes. (CVE-2006-7243)
  - Multiple format string vulnerabilities. (CVE-2010-2094, CVE-2010-2950)
  - An unspecified security bypass vulnerability in open_basedir(). (CVE-2010-3436)
  - A NULL pointer dereference in ZipArchive::getArchiveComment. (CVE-2010-3709)
  - Memory corruption in php_filter_validate_email(). (CVE-2010-3710)
  - An input validation vulnerability in xml_utf8_decode(). (CVE-2010-3870)
  - A possible double free in the IMAP extension. (CVE-2010-4150)
  - An information disclosure vulnerability in 'mb_strcut()'. (CVE-2010-4156)
  - An integer overflow vulnerability in 'getSymbol()'. (CVE-2010-4409)
  - A use-after-free vulnerability in the Zend engine when a '__set()', '__get()', '__isset()' or '__unset()' method is called can allow for a denial of service attack. (Bug #52879 / CVE-2010-4697)
  - A stack-based buffer overflow exists in the 'imagepstext()' function in the GD extension. (Bug #53492 / CVE-2010-4698)
  - The 'iconv_mime_decode_headers()' function in the iconv extension fails to properly handle encodings that are not recognized by the iconv and mbstring implementations. (Bug #52941 / CVE-2010-4699)
  - The 'set_magic_quotes_runtime()' function when the MySQLi extension is used does not properly interact with the 'mysqli_fetch_assoc()' function. (Bug #52221 / CVE-2010-4700)
  - A race condition exists in the PCNTL extension. (CVE-2011-0753)
  - The SplFileInfo::getType function in the Standard PHP Library extension does not properly detect symbolic links. (CVE-2011-0754)
  - An integer overflow exists in the mt_rand function. (CVE-2011-0755)

ID	Name	Product	Family	Type	Severity
217395	Linux Distros Unpatched Vulnerability : CVE-2011-0753	Nessus	Misc.	Local	high
75431	openSUSE Security Update : apache2-mod_php5 (openSUSE-SU-2011:0276-1)	Nessus	SuSE Local Security Checks	Local	medium
57157	SuSE 10 Security Update : PHP5 (ZYPP Patch Number 7393)	Nessus	SuSE Local Security Checks	Local	medium
56459	GLSA-201110-06 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	Local	critical
53695	openSUSE Security Update : apache2-mod_php5 (openSUSE-SU-2011:0276-1)	Nessus	SuSE Local Security Checks	Local	medium
53285	SuSE 10 Security Update : PHP5 (ZYPP Patch Number 7375)	Nessus	SuSE Local Security Checks	Local	medium
53282	SuSE 11.1 Security Update : PHP5 (SAT Patch Number 4133)	Nessus	SuSE Local Security Checks	Local	medium
51140	PHP 5.3 < 5.3.4 Multiple Vulnerabilities	Nessus	CGI abuses	Remote	medium
5732	PHP 5.3.x < 5.3.4 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers		high

Detections

Analytics

CVE-2011-0753

high

Tenable Plugins

high

medium

medium

critical

medium

medium

medium

medium

high