This version upgrade php5 to 5.2.6 fixes several security vulnerabilities.

  - Fixed possible stack-based buffer overflow in the     FastCGI SAPI identified by Andrei Nigmatulin.

  - Fixed integer overflow in printf() identified by     Maksymilian Aciemowicz.

  - Fixed security issue detailed in CVE-2008-0599     identified by Ryan Permeh.

  - Fixed a safe_mode bypass in cURL identified by     Maksymilian Arciemowicz.

  - Properly address incomplete multibyte chars inside     escapeshellcmd() identified by Stefan Esser.

  - and many more...

A number of vulnerabilities have been found and corrected in PHP :

php-cgi in PHP prior to 5.2.6 does not properly calculate the length of PATH_TRANSLATED, which has unknown impact and attack vectors (CVE-2008-0599).

The escapeshellcmd() API function in PHP prior to 5.2.6 has unknown impact and context-dependent attack vectors related to incomplete multibyte characters (CVE-2008-2051).

Weaknesses in the GENERATE_SEED macro in PHP prior to 4.4.8 and 5.2.5 were discovered that could produce a zero seed in rare circumstances on 32bit systems and generations a portion of zero bits during conversion due to insufficient precision on 64bit systems (CVE-2008-2107, CVE-2008-2108).

The IMAP module in PHP uses obsolete API calls that allow context-dependent attackers to cause a denial of service (crash) via a long IMAP request (CVE-2008-2829).

In addition, the updated packages provide a number of bug fixes.

The updated packages have been patched to correct these issues.

The remote host is affected by the vulnerability described in GLSA-200811-05 (PHP: Multiple vulnerabilities)

    Several vulnerabilitites were found in PHP:
    PHP ships a     vulnerable version of the PCRE library which allows for the     circumvention of security restrictions or even for remote code     execution in case of an application which accepts user-supplied regular     expressions (CVE-2008-0674).
    Multiple crash issues in several     PHP functions have been discovered.
    Ryan Permeh reported that     the init_request_info() function in sapi/cgi/cgi_main.c does not     properly consider operator precedence when calculating the length of     PATH_TRANSLATED (CVE-2008-0599).
    An off-by-one error in the     metaphone() function may lead to memory corruption.
    Maksymilian Arciemowicz of SecurityReason Research reported an     integer overflow, which is triggerable using printf() and related     functions (CVE-2008-1384).
    Andrei Nigmatulin reported a     stack-based buffer overflow in the FastCGI SAPI, which has unknown     attack vectors (CVE-2008-2050).
    Stefan Esser reported that PHP     does not correctly handle multibyte characters inside the     escapeshellcmd() function, which is used to sanitize user input before     its usage in shell commands (CVE-2008-2051).
    Stefan Esser     reported that a short-coming in PHP's algorithm of seeding the random     number generator might allow for predictible random numbers     (CVE-2008-2107, CVE-2008-2108).
    The IMAP extension in PHP uses     obsolete c-client API calls making it vulnerable to buffer overflows as     no bounds checking can be done (CVE-2008-2829).
    Tavis Ormandy     reported a heap-based buffer overflow in pcre_compile.c in the PCRE     version shipped by PHP when processing user-supplied regular     expressions (CVE-2008-2371).
    CzechSec reported that specially     crafted font files can lead to an overflow in the imageloadfont()     function in ext/gd/gd.c, which is part of the GD extension     (CVE-2008-3658).
    Maksymilian Arciemowicz of SecurityReason     Research reported that a design error in PHP's stream wrappers allows     to circumvent safe_mode checks in several filesystem-related PHP     functions (CVE-2008-2665, CVE-2008-2666).
    Laurent Gaffie     discovered a buffer overflow in the internal memnstr() function, which     is used by the PHP function explode() (CVE-2008-3659).
    An     error in the FastCGI SAPI when processing a request with multiple dots     preceding the extension (CVE-2008-3660).
  Impact :

    These vulnerabilities might allow a remote attacker to execute     arbitrary code, to cause a Denial of Service, to circumvent security     restrictions, to disclose information, and to manipulate files.
  Workaround :

    There is no known workaround at this time.

This release updates PHP to the latest upstream version 5.2.6, fixing multiple bugs and security issues. See upstream release notes for further details: http://www.php.net/releases/5_2_5.php http://www.php.net/releases/5_2_6.php It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue. (CVE-2008-2051) PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. An attacker could use this flaw to conduct cross-site scripting attack against users of such browsers. (CVE-2007-5898) It was discovered that a PHP script using the transparent session ID configuration option, or using the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form which is posted to a third-party website, the user's session ID would be included in the form data and passed to that website. (CVE-2007-5899) It was discovered that PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data.
(CVE-2007-4782) It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

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

It was discovered that PHP did not properly check the length of the string parameter to the fnmatch function. An attacker could cause a denial of service in the PHP interpreter if a script passed untrusted input to the fnmatch function. (CVE-2007-4782)

Maksymilian Arciemowicz discovered a flaw in the cURL library that allowed safe_mode and open_basedir restrictions to be bypassed. If a PHP application were tricked into processing a bad file:// request, an attacker could read arbitrary files. (CVE-2007-4850)

Rasmus Lerdorf discovered that the htmlentities and htmlspecialchars functions did not correctly stop when handling partial multibyte sequences. A remote attacker could exploit this to read certain areas of memory, possibly gaining access to sensitive information. This issue affects Ubuntu 8.04 LTS, and an updated fix is included for Ubuntu 6.06 LTS, 7.04 and 7.10. (CVE-2007-5898)

It was discovered that the output_add_rewrite_var function would sometimes leak session id information to forms targeting remote URLs.
Malicious remote sites could use this information to gain access to a PHP application user's login credentials. This issue only affects Ubuntu 8.04 LTS. (CVE-2007-5899)

It was discovered that PHP did not properly calculate the length of PATH_TRANSLATED. If a PHP application were tricked into processing a malicious URI, and attacker may be able to execute arbitrary code with application privileges. (CVE-2008-0599)

An integer overflow was discovered in the php_sprintf_appendstring function. Attackers could exploit this to cause a denial of service.
(CVE-2008-1384)

Andrei Nigmatulin discovered stack-based overflows in the FastCGI SAPI of PHP. An attacker may be able to leverage this issue to perform attacks against PHP applications. (CVE-2008-2050)

It was discovered that the escapeshellcmd did not properly process multibyte characters. An attacker may be able to bypass quoting restrictions and possibly execute arbitrary code with application privileges. (CVE-2008-2051)

It was discovered that the GENERATE_SEED macro produced a predictable seed under certain circumstances. Attackers may by able to easily predict the results of the rand and mt_rand functions. (CVE-2008-2107, CVE-2008-2108)

Tavis Ormandy discovered that the PCRE library did not correctly handle certain in-pattern options. An attacker could cause PHP applications using pcre to crash, leading to a denial of service.
USN-624-1 fixed vulnerabilities in the pcre3 library. This update provides the corresponding update for PHP. (CVE-2008-2371)

It was discovered that php_imap used obsolete API calls. If a PHP application were tricked into processing a malicious IMAP request, an attacker could cause a denial of service or possibly execute code with application privileges. (CVE-2008-2829).

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.

According to its banner, the version of PHP installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack-based buffer overflow in FastCGI SAPI.

  - An integer overflow in printf().

  - An security issue arising from improper calculation     of the length of PATH_TRANSLATED in cgi_main.c.

  - A safe_mode bypass in cURL.

  - Incomplete handling of multibyte chars inside     escapeshellcmd().

  - Issues in the bundled PCRE fixed by version 7.6.

New php packages are available for Slackware 10.2, 11.0, 12.0, 12.1, and -current to fix security issues. Note that PHP5 is not the default PHP for Slackware 10.2 or 11.0 (those use PHP4), so if your PHP code is not ready for PHP5, don't upgrade until it is or you'll (by definition) run into problems.

A number of vulnerabilities have been found and corrected in PHP :

The htmlentities() and htmlspecialchars() functions in PHP prior to 5.2.5 accepted partial multibyte sequences, which has unknown impact and attack vectors (CVE-2007-5898).

The output_add_rewrite_var() function in PHP prior to 5.2.5 rewrites local forms in which the ACTION attribute references a non-local URL, which could allow a remote attacker to obtain potentially sensitive information by reading the requests for this URL (CVE-2007-5899).

php-cgi in PHP prior to 5.2.6 does not properly calculate the length of PATH_TRANSLATED, which has unknown impact and attack vectors (CVE-2008-0599).

The escapeshellcmd() API function in PHP prior to 5.2.6 has unknown impact and context-dependent attack vectors related to incomplete multibyte characters (CVE-2008-2051).

Weaknesses in the GENERATE_SEED macro in PHP prior to 4.4.8 and 5.2.5 were discovered that could produce a zero seed in rare circumstances on 32bit systems and generations a portion of zero bits during conversion due to insufficient precision on 64bit systems (CVE-2008-2107, CVE-2008-2108).

The IMAP module in PHP uses obsolete API calls that allow context-dependent attackers to cause a denial of service (crash) via a long IMAP request (CVE-2008-2829).

In addition, this update also corrects an issue with some float to string conversions.

The updated packages have been patched to correct these issues.

This release updates PHP to the latest upstream version 5.2.6, fixing multiple bugs and security issues. See upstream release notes for further details: http://www.php.net/releases/5_2_6.php It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051) It was discovered that a PHP script using the transparent session ID configuration option, or using the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form which is posted to a third-party website, the user's session ID would be included in the form data and passed to that website. (CVE-2007-5899) It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

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

The remote host is running a version of Mac OS X 10.5 or 10.4 that does not have the security update 2008-005 applied. 

This update contains security fixes for a number of programs.

According to its banner, the version of PHP 5.x installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack buffer overflow in FastCGI SAPI.
  - An integer overflow in printf().
  - An unspecified security issue tracked by CVE-2008-0599.
  - A safe_mode bypass in cURL.
  - Incomplete handling of multibyte chars inside escapeshellcmd().
  - Issues in the bundled PCRE fixed by version 7.6.

The version of PHP installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack buffer overflow in FastCGI SAPI.
  - An integer overflow in printf().
  - An unspecified security issue tracked by CVE-2008-0599.
  - A safe_mode bypass in cURL.
  - Incomplete handling of multibyte chars inside escapeshellcmd().
  - Issues in the bundled PCRE fixed by version 7.6.

ID	Name	Product	Family	Published	Updated	Severity
33266	SuSE 10 Security Update : PHP5 (ZYPP Patch Number 5345)	Nessus	SuSE Local Security Checks	6/26/2008	1/14/2021	critical
36486	Mandriva Linux Security Advisory : php (MDVSA-2008:128)	Nessus	Mandriva Local Security Checks	4/23/2009	1/6/2021	critical
34787	GLSA-200811-05 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	11/17/2008	1/6/2021	critical
33232	Fedora 8 : php-5.2.6-2.fc8 (2008-3864)	Nessus	Fedora Local Security Checks	6/24/2008	1/11/2021	critical
33575	Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : php5 vulnerabilities (USN-628-1)	Nessus	Ubuntu Local Security Checks	7/24/2008	1/19/2021	critical
32123	PHP < 5.2.6 Multiple Vulnerabilities	Nessus	CGI abuses	5/2/2008	4/11/2022	high
32444	Slackware 10.2 / 11.0 / 12.0 / 12.1 / current : php (SSA:2008-128-01)	Nessus	Slackware Local Security Checks	5/28/2008	1/14/2021	critical
38042	Mandriva Linux Security Advisory : php (MDVSA-2008:127)	Nessus	Mandriva Local Security Checks	4/23/2009	1/6/2021	critical
33231	Fedora 9 : php-5.2.6-2.fc9 (2008-3606)	Nessus	Fedora Local Security Checks	6/24/2008	1/11/2021	critical
33790	Mac OS X Multiple Vulnerabilities (Security Update 2008-005)	Nessus	MacOS X Local Security Checks	8/1/2008	7/14/2018	critical
4493	PHP 5.x < 5.2.6 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	5/2/2008	3/6/2019	high
801068	PHP < 5.2.6 Multiple Vulnerabilities	Log Correlation Engine	Web Servers			high

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