Vulnerabilities > CVE-2016-5114 - Out-of-bounds Read vulnerability in PHP
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
sapi/fpm/fpm/fpm_log.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 misinterprets the semantics of the snprintf return value, which allows attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read and buffer overflow) via a long string, as demonstrated by a long URI in a configuration with custom REQUEST_URI logging.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Nessus
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3045-1.NASL description It was discovered that PHP incorrectly handled certain SplMinHeap::compare operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-4116) It was discovered that PHP incorrectly handled recursive method calls. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8873) It was discovered that PHP incorrectly validated certain Exception objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8876) It was discovered that PHP header() function performed insufficient filtering for Internet Explorer. A remote attacker could possibly use this issue to perform a XSS attack. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8935) It was discovered that PHP incorrectly handled certain locale operations. An attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5093) It was discovered that the PHP php_html_entities() function incorrectly handled certain string lengths. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5094, CVE-2016-5095) It was discovered that the PHP fread() function incorrectly handled certain lengths. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5096) It was discovered that the PHP FastCGI Process Manager (FPM) SAPI incorrectly handled memory in the access logging feature. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly expose sensitive information. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5114) It was discovered that PHP would not protect applications from contents of the HTTP_PROXY environment variable when based on the contents of the Proxy header from HTTP requests. A remote attacker could possibly use this issue in combination with scripts that honour the HTTP_PROXY variable to redirect outgoing HTTP requests. (CVE-2016-5385) Hans Jerry Illikainen discovered that the PHP bzread() function incorrectly performed error handling. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-5399) It was discovered that certain PHP multibyte string functions incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-5768) It was discovered that the PHP Mcrypt extension incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5769) It was discovered that the PHP garbage collector incorrectly handled certain objects when unserializing malicious data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu Ubuntu 14.04 LTS. (CVE-2016-5771, CVE-2016-5773) It was discovered that PHP incorrectly handled memory when unserializing malicious xml data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5772) It was discovered that the PHP php_url_parse_ex() function incorrectly handled string termination. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-6288) It was discovered that PHP incorrectly handled path lengths when extracting certain Zip archives. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6289) It was discovered that PHP incorrectly handled session deserialization. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6290) It was discovered that PHP incorrectly handled exif headers when processing certain JPEG images. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6291, CVE-2016-6292) It was discovered that PHP incorrectly handled certain locale operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6294) It was discovered that the PHP garbage collector incorrectly handled certain objects when unserializing SNMP data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6295) It was discovered that the PHP xmlrpc_encode_request() function incorrectly handled certain lengths. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6296) It was discovered that the PHP php_stream_zip_opener() function incorrectly handled memory. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6297). 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. last seen 2020-06-01 modified 2020-06-02 plugin id 92699 published 2016-08-03 reporter Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92699 title Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : php5, php7.0 vulnerabilities (USN-3045-1) (httpoxy) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-703.NASL description This update for php5 fixes the following issues : - CVE-2013-7456: imagescale out-of-bounds read (bnc#982009). - CVE-2016-5093: get_icu_value_internal out-of-bounds read (bnc#982010). - CVE-2016-5094: Don last seen 2020-06-05 modified 2016-06-14 plugin id 91585 published 2016-06-14 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91585 title openSUSE Security Update : php5 (openSUSE-2016-703) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1638-1.NASL description This update for php53 to version 5.3.17 fixes the following issues : These security issues were fixed : - CVE-2016-5093: get_icu_value_internal out-of-bounds read (bnc#982010). - CVE-2016-5094: Don last seen 2020-06-01 modified 2020-06-02 plugin id 93161 published 2016-08-29 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93161 title SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1638-1) (BACKRONYM) NASL family CGI abuses NASL id PHP_7_0_2.NASL description According to its banner, the version of PHP running on the remote host is 7.x prior to 7.0.2. It is, therefore, affected by multiple vulnerabilities : - An out-of-bounds read error exists in the gdImageRotateInterpolated() function in file gd_interpolation.c when handling background colors. A remote attacker can exploit this to disclose memory contents or crash the application. (CVE-2016-1903) - An integer overflow condition exists in file exec.c in the escapeshellarg() and escapeshellcmd() functions due to a failure to properly validate user-supplied string input. A remote attacker can exploit this to cause a heap-based overflow, resulting in a denial of service or the execution of arbitrary code. (CVE-2016-1904) - A use-after-free error exists in file wddx.c in the php_wddx_pop_element() function when handling WDDX packet deserialization. A remote attacker can exploit this, by dereferencing already freed memory, to execute arbitrary code. - A type confusion flaw exists in file xmlrpc-epi-php.c in the PHP_to_XMLRPC_worker() function. A remote attacker can exploit this to disclose memory contents, crash the application process, or have other impact. - A type confusion flaw exists in file wddx.c when handling WDDX packet deserialization. A remote attacker can exploit this to execute arbitrary code. - An unspecified flaw exists in file fpm_log.c in the fpm_log_write() function when handling very long HTTP requests. A local attacker can exploit this to obtain sensitive information, via access to the access log file. (CVE-2016-5114) - A flaw exists in file lsapilib.c when handling requests due to the LSAPI module failing to clear its secrets in child processes. A remote attacker can exploit this to gain access to memory contents, resulting in the disclosure of sensitive information. - A flaw exists in file lsapilib.c in the parseRequest() function due to a failure to properly sanitize input passed through multiple, unspecified parameters. A remote attacker can exploit this to cause a denial of service. last seen 2020-06-01 modified 2020-06-02 plugin id 88680 published 2016-02-10 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88680 title PHP 7.x < 7.0.2 Multiple Vulnerabilities NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1795.NASL description According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The file_check_mem function in funcs.c in file before 5.23, as used in the Fileinfo component in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5, mishandles continuation-level jumps, which allows context-dependent attackers to cause a denial of service (buffer overflow and application crash) or possibly execute arbitrary code via a crafted magic file.(CVE-2015-8865) - The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 accepts a negative integer for the scale argument, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.(CVE-2016-4537) - The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 modifies certain data structures without considering whether they are copies of the _zero_, _one_, or _two_ global variable, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.(CVE-2016-4538) - Integer overflow in the fread function in ext/standard/file.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large integer in the second argument.(CVE-2016-5096) - An out-of-bounds write flaw was found in the fpm_log_write() logging function of PHP last seen 2020-05-06 modified 2019-08-23 plugin id 128087 published 2019-08-23 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128087 title EulerOS 2.0 SP5 : php (EulerOS-SA-2019-1795) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1865.NASL description According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out-of-bounds write flaw was found in the fpm_log_write() logging function of PHP last seen 2020-05-08 modified 2019-09-17 plugin id 128917 published 2019-09-17 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128917 title EulerOS 2.0 SP2 : php (EulerOS-SA-2019-1865) NASL family CGI abuses NASL id PHP_5_5_31.NASL description According to its banner, the version of PHP running on the remote host is 5.5.x prior to 5.5.31 or 5.6.x prior to 5.6.17. It is, therefore, affected by multiple vulnerabilities : - An out-of-bounds read error exists in the gdImageRotateInterpolated() function in file gd_interpolation.c when handling background colors. A remote attacker can exploit this to disclose memory contents or crash the application. (CVE-2016-1903) - An unspecified flaw exists in file fpm_log.c in the fpm_log_write() function when handling very long HTTP requests. A local attacker can exploit this to obtain sensitive information, via access to the access log file. (CVE-2016-5114) - A use-after-free error exists in file wddx.c in the php_wddx_pop_element() function when handling WDDX packet deserialization. A remote attacker can exploit this, by dereferencing already freed memory, to execute arbitrary code. - A type confusion flaw exists in file xmlrpc-epi-php.c in the PHP_to_XMLRPC_worker() function. A remote attacker can exploit this to disclose memory contents, crash the application process, or have other impact. - A type confusion flaw exists in file wddx.c when handling WDDX packet deserialization. A remote attacker can exploit this to execute arbitrary code. - A flaw exists in file lsapilib.c when handling requests due to the LSAPI module failing to clear its secrets in child processes. A remote attacker can exploit this to gain access to memory contents, resulting in the disclosure of sensitive information. - A flaw exists in file lsapilib.c in the parseRequest() function due to a failure to properly sanitize input passed through multiple, unspecified parameters. A remote attacker can exploit this to cause a denial of service. last seen 2020-06-01 modified 2020-06-02 plugin id 88679 published 2016-02-10 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88679 title PHP prior to 5.5.x < 5.5.31 / 5.6.x < 5.6.17 Multiple Vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1581-1.NASL description This update for php53 fixes the following issues : - CVE-2016-5093: A get_icu_value_internal out-of-bounds read could crash the php interpreter (bsc#982010) - CVE-2016-5094,CVE-2016-5095: Don last seen 2020-06-01 modified 2020-06-02 plugin id 91665 published 2016-06-17 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91665 title SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1581-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2043.NASL description According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.(CVE-2019-11040) - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.(CVE-2019-11042) - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.(CVE-2019-11041) - The openssl_random_pseudo_bytes function in ext/openssl/openssl.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 incorrectly relies on the deprecated RAND_pseudo_bytes function, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via unspecified vectors.(CVE-2015-8867) - A flaw was found in the way the way PHP last seen 2020-05-08 modified 2019-09-24 plugin id 129236 published 2019-09-24 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129236 title EulerOS 2.0 SP3 : php (EulerOS-SA-2019-2043) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-628.NASL description - CVE-2016-4473.patch An invalid free may occur under certain conditions when processing phar-compatible archives. - CVE-2016-4538.patch The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 accepts a negative integer for the scale argument, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call. (already fixed with patch for CVE-2016-4537) - CVE-2016-5114.patch sapi/fpm/fpm/fpm_log.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 misinterprets the semantics of the snprintf return value, which allows attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read and buffer overflow) via a long string, as demonstrated by a long URI in a configuration with custom REQUEST_URI logging. - CVE-2016-5399.patch Improper error handling in bzread() - CVE-2016-5768.patch Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception. - CVE-2016-5769.patch Multiple integer overflows in mcrypt.c in the mcrypt extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allow remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted length value, related to the (1) mcrypt_generic and (2) mdecrypt_generic functions. - CVE-2016-5770.patch Integer overflow in the SplFileObject::fread function in spl_directory.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large integer argument, a related issue to CVE-2016-5096. - CVE-2016-5771.patch spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data. - CVE-2016-5772.patch Double free vulnerability in the php_wddx_process_data function in wddx.c in the WDDX extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted XML data that is mishandled in a wddx_deserialize call. - CVE-2016-5773.patch php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object. - CVE-2016-6289.patch Integer overflow in the virtual_file_ex function in TSRM/tsrm_virtual_cwd.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted extract operation on a ZIP archive. - CVE-2016-6290.patch ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization. - CVE-2016-6291.patch The exif_process_IFD_in_MAKERNOTE function in ext/exif/exif.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds array access and memory corruption), obtain sensitive information from process memory, or possibly have unspecified other impact via a crafted JPEG image. - CVE-2016-6292.patch The exif_process_user_comment function in ext/exif/exif.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted JPEG image. - CVE-2016-6294.patch The locale_accept_from_http function in ext/intl/locale/locale_methods.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument. - CVE-2016-6295.patch ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773. - CVE-2016-6296.patch Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function. - CVE-2016-6297.patch Integer overflow in the php_stream_zip_opener function in ext/zip/zip_stream.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted zip:// URL. - BUG-70436.patch Use After Free Vulnerability in unserialize() - BUG-72681.patch PHP Session Data Injection Vulnerability, consume data even if we last seen 2020-03-17 modified 2016-09-19 plugin id 93568 published 2016-09-19 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93568 title Debian DLA-628-1 : php5 security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1928.NASL description According to the versions of the php packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the way the way PHP last seen 2020-06-01 modified 2020-06-02 plugin id 128931 published 2019-09-17 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128931 title EulerOS Virtualization for ARM 64 3.0.2.0 : php (EulerOS-SA-2019-1928)
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References
- http://php.net/ChangeLog-7.php
- http://php.net/ChangeLog-5.php
- http://www.openwall.com/lists/oss-security/2016/05/29/1
- http://github.com/php/php-src/commit/2721a0148649e07ed74468f097a28899741eb58f?w=1
- http://www.search-lab.hu/about-us/news/111-some-unusual-vulnerabilities-in-the-php-engine
- https://bugs.php.net/bug.php?id=70755
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- http://rhn.redhat.com/errata/RHSA-2016-2750.html