Several remote vulnerabilities have been discovered in PHP 5, an hypertext preprocessor. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2010-1917     The fnmatch function can be abused to conduct denial of     service attacks (by crashing the interpreter) by the     means of a stack overflow.

  - CVE-2010-2225     The SplObjectStorage unserializer allows attackers to     execute arbitrary code via serialized data by the means     of a use-after-free vulnerability.

  - CVE-2010-3065     The default sessions serializer does not correctly     handle a special marker, which allows an attacker to     inject arbitrary variables into the session and possibly     exploit vulnerabilities in the unserializer.

  - CVE-2010-1128     For this vulnerability (predictable entropy for the     Linear Congruential Generator used to generate session     ids) we do not consider upstream's solution to be     sufficient. It is recommended to uncomment     the'session.entropy_file' and 'session.entropy_length'     settings in the php.ini files. Further improvements can     be achieved by setting'session.hash_function' to 1 (one)     and incrementing the value of'session.entropy_length'.

According to its banner, the version of PHP 5.3 installed on the remote host is older than 5.3.3.  Such versions may be affected by several security issues :

  - An error exists when processing invalid XML-RPC     requests that can lead to a NULL pointer     dereference. (bug #51288) (CVE-2010-0397)

  - An error exists in the function 'shm_put_var' that     is related to resource destruction.

  - An error exists in the function 'fnmatch' that can lead     to stack exhaustion. (CVE-2010-1917)

  - A memory corruption error exists related to call-time     pass by reference and callbacks.

  - The dechunking filter is vulnerable to buffer overflow.

  - An error exists in the sqlite extension that could     allow arbitrary memory access.

  - An error exists in the 'phar' extension related to     string format validation.

  - The functions 'mysqlnd_list_fields' and     'mysqlnd_change_user' are vulnerable to buffer overflow.

  - The Mysqlnd extension is vulnerable to buffer overflow     attack when handling error packets.

  - The following functions are not properly protected     against function interruptions :

    addcslashes, chunk_split, html_entity_decode,     iconv_mime_decode, iconv_substr, iconv_mime_encode,     htmlentities, htmlspecialchars, str_getcsv,     http_build_query, strpbrk, strtr, str_pad,     str_word_count, wordwrap, strtok, setcookie,     strip_tags, trim, ltrim, rtrim, substr_replace,     parse_str, pack, unpack, uasort, preg_match, strrchr     (CVE-2010-1860, CVE-2010-1862, CVE-2010-1864,     CVE-2010-2097, CVE-2010-2100, CVE-2010-2101,     CVE-2010-2190, CVE-2010-2191, CVE-2010-2484)

  - The following opcodes are not properly protected     against function interruptions :

    ZEND_CONCAT, ZEND_ASSIGN_CONCAT, ZEND_FETCH_RW, XOR     (CVE-2010-2191)

  - The default session serializer contains an error     that can be exploited when assigning session     variables having user defined names. Arbitrary     serialized values can be injected into sessions by     including the PS_UNDEF_MARKER, '!', character in     variable names.

  - A use-after-free error exists in the function     'spl_object_storage_attach'. (CVE-2010-2225)

  - An information disclosure vulnerability exists in the     function 'var_export' when handling certain error     conditions. (CVE-2010-2531)

Update to PHP 5.3.3 Security Enhancements and Fixes in PHP 5.3.3: * Rewrote var_export() to use smart_str rather than output buffering, prevents data disclosure if a fatal error occurs (CVE-2010-2531). * Fixed a possible resource destruction issues in shm_put_var(). * Fixed a possible information leak because of interruption of XOR operator. * Fixed a possible memory corruption because of unexpected call-time pass by refernce and following memory clobbering through callbacks. * Fixed a possible memory corruption in ArrayObject::uasort(). * Fixed a possible memory corruption in parse_str(). * Fixed a possible memory corruption in pack(). * Fixed a possible memory corruption in substr_replace(). * Fixed a possible memory corruption in addcslashes(). * Fixed a possible stack exhaustion inside fnmatch(). * Fixed a possible dechunking filter buffer overflow. * Fixed a possible arbitrary memory access inside sqlite extension. * Fixed string format validation inside phar extension. * Fixed handling of session variable serialization on certain prefix characters. * Fixed a NULL pointer dereference when processing invalid XML-RPC requests (Fixes CVE-2010-0397, bug #51288). * Fixed SplObjectStorage unserialization problems (CVE-2010-2225). * Fixed possible buffer overflows in mysqlnd_list_fields, mysqlnd_change_user. * Fixed possible buffer overflows when handling error packets in mysqlnd. Full upstream Changelog: http://www.php.net/ChangeLog-5.php#5.3.3

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.

PHP was updated to version 5.3.3 to fix serveral security issues.

(CVE-2010-0397, CVE-2010-1860, CVE-2010-1862, CVE-2010-1864, CVE-2010-1866, CVE-2010-1914, CVE-2010-1915, CVE-2010-1917, CVE-2010-2093, CVE-2010-2094, CVE-2010-2097, CVE-2010-2100, CVE-2010-2101, CVE-2010-2190, CVE-2010-2191, CVE-2010-2225, CVE-2010-2531, CVE-2010-2950, CVE-2010-3062, CVE-2010-3063, CVE-2010-3064, CVE-2010-3065)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
48384	Debian DSA-2089-1 : php5 - several vulnerabilities	Nessus	Debian Local Security Checks	2010/8/23	2021/1/4	high
48245	PHP 5.3 < 5.3.3 Multiple Vulnerabilities	Nessus	CGI abuses	2010/8/4	2025/5/26	high
48412	Fedora 13 : maniadrive-1.2-22.fc13 / php-5.3.3-1.fc13 / php-eaccelerator-0.9.6.1-2.fc13 (2010-11481)	Nessus	Fedora Local Security Checks	2010/8/24	2021/1/11	high
49210	openSUSE Security Update : apache2-mod_php5 (openSUSE-SU-2010:0599-1)	Nessus	SuSE Local Security Checks	2010/9/13	2021/1/14	high

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