The SoapClient implementation in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an unexpected data type, related to "type confusion" issues in the (1) SoapClient::getLastRequest, (2) SoapClient::getLastResponse, (3) SoapClient::getLastRequestHeaders, (4) SoapClient::getLastResponseHeaders, (5) SoapClient::getCookies, and (6) SoapClient::setCookie methods.

The exception::getTraceAsString function in Zend/zendexceptions.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to execute arbitrary code via an unexpected data type, related to a "type confusion" issue.

The PHPIncompleteClass function in ext/standard/incompleteclass.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an unexpected data type, related to a "type confusion" issue.

The SoapFault::toString method in ext/soap/soap.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to obtain sensitive information, cause a denial of service (application crash), or possibly execute arbitrary code via an unexpected data type, related to a "type confusion" issue.

The escapeshellarg function in ext/standard/exec.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 on Windows allows remote attackers to execute arbitrary OS commands via a crafted string to an application that accepts command-line arguments for a call to the PHP system function.

The pharconverttoother function in ext/phar/pharobject.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not validate a file pointer before a close operation, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted TAR archive that is mishandled in a Phar::convertToData call.

Fixed bug (AddressSanitizer: negative-size-param (-1) in mbflstrcut). (CVE-2016-4073)

Fixed bug (Invalid memory write in phar on filename with \0 in name). (CVE-2016-4072)

Fixed bug (phpsnmperror() Format String Vulnerability). (CVE-2016-4071)

Last updated 24 July 2024

Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface, (2) the SplObjectStorage class, and (3) the SplDoublyLinkedList class, which are mishandled during unserialization.

The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple phpvarunserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.

The geticudispvaluesrcphp function in ext/intl/locale/localemethods.c in PHP before 5.3.29, 5.4.x before 5.4.30, and 5.5.x before 5.5.14 does not properly restrict calls to the ICU uresbund.cpp component, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a localegetdisplayname call with a long first argument.

gdxbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers to obtain sensitive information from process memory or cause a denial of service (stack-based buffer under-read and application crash) via a long name.

Drupal 6.x before 6.38, when used with PHP before 5.4.45, 5.5.x before 5.5.29, or 5.6.x before 5.6.13, might allow remote attackers to execute arbitrary code via vectors related to session data truncation.

applications/core/modules/front/system/content.php in Invision Power Services IPS Community Suite (aka Invision Power Board, IPB, or Power Board) before 4.1.13, when used with PHP before 5.4.24 or 5.5.x before 5.5.8, allows remote attackers to execute arbitrary code via the contentclass parameter.

An integer overflow flaw in PHP's unserialize() function was reported. If unserialize() were used on untrusted data, this issue could lead to a crash or potentially information disclosure. It is not clear if code execution is possible or not.

It was reported that this issue only affects 32-bit systems. It has been fixed in upstream versions 5.4.34, 5.5.18, and 5.6.2.

References: http://git.php.net/?p=php-src.git;a=commit;h=56754a7f9eba0e4f559b6ca081d9f2a447b3f159 https://bugs.php.net/bug.php?id=68044 http://php.net/ChangeLog-5.php

A use-after-free flaw was found in PHP unserialize(). An untrusted input could cause PHP interpreter to crash or, possibly, execute arbitrary code when processed using unserialize().

Upstream bug (currently private):

https://bugs.php.net/bug.php?id=68594

Upstream commit:

http://git.php.net/?p=php-src.git;a=commitdiff;h=630f9c33c23639de85c3fd306b209b538b73b4c9 http://git.php.net/?p=php-src.git;a=commitdiff;h=53f129a44d3c4ec0fae57993b9ae2f6cb48973cc

Note that unserialize() is unsafe for use on untrusted inputs, as is documented in the PHP manual for the function:

http://php.net/manual/en/function.unserialize.php

It was discovered that the fix for CVE-2014-8142 (use after free vulnerability in unserialize(), see bug 1175718) was incomplete.

Upstream bug: https://bugs.php.net/bug.php?id=68710

Upstream commit: http://git.php.net/?p=php-src.git;a=commitdiff;h=b585a3aed7880a5fa5c18e2b838fc96f40e075bd

Multiple use-after-free vulnerabilities in ext/date/phpdate.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 allow remote attackers to execute arbitrary code via crafted serialized input containing a (1) R or (2) r type specifier in (a) DateTimeZone data handled by the phpdatetimezoneinitializefromhash function or (b) DateTime data handled by the phpdateinitializefromhash function.

Integer overflow in the zipcdirnew function in zipdirent.c in libzip 0.11.2 and earlier, as used in the ZIP extension in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a ZIP archive that contains many entries, leading to a heap-based buffer overflow.

Use-after-free vulnerability in the processnesteddata function in ext/standard/varunserializer.re in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages use of the unset function within an wakeup function, a related issue to CVE-2015-0231.

Integer overflow in the ftpgenlist function in ext/ftp/ftp.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 allows remote FTP servers to execute arbitrary code via a long reply to a LIST command, leading to a heap-based buffer overflow.

Multiple stack-based buffer overflows in the pharsetinode function in pharinternal.h in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allow remote attackers to execute arbitrary code via a crafted length value in a (1) tar, (2) phar, or (3) ZIP archive.

The SoapClient::call method in ext/soap/soap.c in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 does not verify that defaultheaders is an array, which allows remote attackers to execute arbitrary code by providing crafted serialized data with an unexpected data type, related to a "type confusion" issue.

PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a \x00 character in certain situations, which allows remote attackers to bypass intended extension restrictions and access files or directories with unexpected names via a crafted argument to (1) setincludepath, (2) tempnam, (3) rmdir, or (4) readlink. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-7243.

A vulnerability in PHP was reported whereby the Heap header gets misaligned resulting in the corruption of the heap chunk's metadata.

A heap chunk is allocated in ext/phar/tar.c:167

metadata = (char ) safeemalloc(1, entry->uncompressedfilesize, 1);

A reference to this heap chunk is passed into pharparsemetadata() at ext/phar/tar.c:176

if (pharparsemetadata(&metadata, &entry->metadata, entry->uncompressedfilesize TSRMLSCC) == FAILURE) {

The following gets called within pharparsemetadata:611 when zipmetadatalen==0

PHARGET32(buffer, buflen);

This moves the pointer referencing the heap chunk by 4 bytes.

When the heap chunk gets freeed at at tar.c:177:

efree(metadata);

The heap chunk is now misaligned by 4 bytes. In other words: ZENDMMHEADEROF(metadata).info.size is now ZENDMMHEADEROF(metadata).info.prev and ZENDMMHEADEROF(metadata).info.prev is tainted with the body's data.

Upstream bug: https://bugs.php.net/bug.php?id=69443

Upstream patch: http://git.php.net/?p=php-src.git;a=commitdiff;h=17cbd0b5b78a7500f185b3781a2149881bfff8ae

This patch was for CVE-2015-2783 (bug 1213446), but it inadvertently resolved this vulnerability as well. The vulnerable line that was removed was on ext/phar/phar.c:611

PHARGET32(buffer, buflen);

The pcntlexec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a \x00 character, which might allow remote attackers to bypass intended extension restrictions and execute files with unexpected names via a crafted first argument. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-7243.

Use-after-free vulnerability in the SPL unserialize implementation in ext/spl/splarray.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to execute arbitrary code via crafted serialized data that triggers misuse of an array field.

Stack-based buffer overflow in the pharfixfilepath function in ext/phar/phar.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large length value, as demonstrated by mishandling of an e-mail attachment by the imap PHP extension.