Zend/zendexceptions.c in PHP, possibly 5.x before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (infinite loop) via a crafted Exception object in serialized data, a related issue to CVE-2015-8876.

Session fixation vulnerability in the Sessions subsystem in PHP before 5.5.2 allows remote attackers to hijack web sessions by specifying a session ID.

The (1) rand and (2) mtrand functions in PHP 5.2.6 do not produce cryptographically strong random numbers, which allows attackers to leverage exposures in products that rely on these functions for security-relevant functionality, as demonstrated by the password-reset functionality in Joomla! 1.5.x and WordPress before 2.6.2, a different vulnerability than CVE-2008-2107, CVE-2008-2108, and CVE-2008-4102.

Buffer overflow in the memnstr function in PHP 4.4.x before 4.4.9 and PHP 5.6 through 5.2.6 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via the delimiter argument to the explode function. NOTE: the scope of this issue is limited since most applications would not use an attacker-controlled delimiter, but local attacks against safemode are feasible.

PHP 4.4.x before 4.4.9, and 5.x through 5.2.6, when used as a FastCGI module, allows remote attackers to cause a denial of service (crash) via a request with multiple dots preceding the extension, as demonstrated using foo..php.

Buffer overflow in the imageloadfont function in ext/gd/gd.c in PHP 4.4.x before 4.4.9 and PHP 5.2 before 5.2.6-r6 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted font file.

Multiple directory traversal vulnerabilities in PHP 5.2.6 and earlier allow context-dependent attackers to bypass safemode restrictions by creating a subdirectory named http: and then placing ../ (dot dot slash) sequences in an http URL argument to the (1) chdir or (2) ftok function.

Stack-based buffer overflow in the FastCGI SAPI (fastcgi.c) in PHP before 5.2.6 has unknown impact and attack vectors.

The GENERATESEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mtrand functions.

The GENERATESEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 32-bit systems, performs a multiplication using values that can produce a zero seed in rare circumstances, which allows context-dependent attackers to predict subsequent values of the rand and mtrand functions and possibly bypass protection mechanisms that rely on an unknown initial seed.

The escapeshellcmd API function in PHP before 5.2.6 has unknown impact and context-dependent attack vectors related to "incomplete multibyte chars."

The initrequestinfo function in sapi/cgi/cgimain.c in PHP before 5.2.6 does not properly consider operator precedence when calculating the length of PATHTRANSLATED, which might allow remote attackers to execute arbitrary code via a crafted URI.

PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack vectors related to (1) interrupt corruption of the SESSION superglobal array and (2) the session.savepath directive.

The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid ShiftJIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character.

The procopen function in ext/standard/procopen.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safemodeallowedenvvars and (2) safemodeprotectedenvvars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LDLIBRARYPATH environment variable.

Unspecified vulnerability in PHP before 5.2.11, and 5.3.x before 5.3.1, has unknown impact and attack vectors related to "missing sanity checks around exif processing."

The phpopensslapplyverificationpolicy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates.

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect "sanity check for the color index."

The JSONparser function (ext/json/JSONparser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the jsondecode API function.

The phpzipmakerelativepath function in phpzip.c in PHP 5.2.x before 5.2.9 allows context-dependent attackers to cause a denial of service (crash) via a ZIP file that contains filenames with relative paths, which is not properly handled during extraction.

An interruption vulnerability was discovered in strrchr() in PHP 5.2.x. A malicious script author could interrupt internal PHP function, leading to information leak.

Upstream commit: http://svn.php.net/viewvc?view=revision&revision=300916

References: http://thread.gmane.org/gmane.comp.security.oss.general/3109 http://www.php.net/releases/5214.php

A vulnerability was found in the SplObjectStorage unserializer. If the PHP unserialize() function is used by a script on untrusted data provided by a remote attacker the attacker may be able to force an information leak or remote execution of code on the server.

This was reported by Stefan Esser at the SyScan'10 Conference in Singapore.

PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Buffer overflow in the crypt function in PHP before 5.3.7 allows context-dependent attackers to have an unspecified impact via a long salt argument, a different vulnerability than CVE-2011-2483.

PHP before 5.3.7 does not properly implement the errorlog function, which allows context-dependent attackers to cause a denial of service (application crash) via unspecified vectors.

PHP before 5.3.7 does not properly check the return values of the malloc, calloc, and realloc library functions, which allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) or trigger a buffer overflow by leveraging the ability to provide an arbitrary value for a function argument, related to (1) ext/curl/interface.c, (2) ext/date/lib/parsedate.c, (3) ext/date/lib/parseisointervals.c, (4) ext/date/lib/parsetz.c, (5) ext/date/lib/timelib.c, (6) ext/pdoodbc/pdoodbc.c, (7) ext/reflection/phpreflection.c, (8) ext/soap/phpsdl.c, (9) ext/xmlrpc/libxmlrpc/base64.c, (10) TSRM/tsrmwin32.c, and (11) the strtotime function.

cryptblowfish before 1.1, as used in PHP before 5.3.7 on certain platforms, PostgreSQL before 8.4.9, and other products, 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.

Buffer overflow in the strval function in PHP before 5.3.6, when the precision configuration option has a large value, might allow context-dependent attackers to cause a denial of service (application crash) via a small numerical value in the argument.

Multiple memory leaks in the OpenSSL extension in PHP before 5.3.6 might allow remote attackers to cause a denial of service (memory consumption) via (1) plaintext data to the opensslencrypt function or (2) ciphertext data to the openssldecrypt function.

Unspecified vulnerability in the NumberFormatter::setSymbol (aka numfmtsetsymbol) function in the Intl extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (application crash) via an invalid argument, a related issue to CVE-2010-4409.