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The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before 2.9.2 is used, does not consider the possibility of a NULL valuePop return value before proceeding with a free operation during initial error checking, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted XML document, a different vulnerability than CVE-2015-6838.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade php | Aug 30, 2017 | Jan 19, 2016 |
| Apple Osx Accelerateframework | — | Upgrade macOS to the latest versionApply OS X security update 2015-007 | Oct 22, 2015 | Oct 22, 2015 |
| Apple Osx Apachemodphp | — | Upgrade macOS to the latest versionApply OS X security update 2015-007 MavericksApply OS X security update 2015-004 Yosemite | Mar 29, 2016 | Mar 29, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Oct 8, 2015 |
| Freebsd | — | Upgrade php56-soapUpgrade php56Upgrade php5-soapUpgrade php55Upgrade php55-xslUpgrade php5Upgrade php5-xslUpgrade php56-xslUpgrade php55-soap | Dec 10, 2025 | Sep 8, 2015 |
| Gentoo Linux | — | Upgrade dev-lang/php. | Oct 30, 2017 | May 16, 2016 |
| Oracle Solaris | — | Upgrade entire/ to version 11.4-11.4.0.0.1.15.0 on Solaris 11.4 | Oct 19, 2018 | May 16, 2016 |
| Php | — | Upgrade to PHP version 5.4.45Upgrade to PHP version 5.5.29Upgrade to PHP version 5.6.13 | Jun 3, 2016 | May 16, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 9, 2015 |
| Suse | — | Upgrade php53-pgsqlUpgrade php5-dbaseUpgrade php5-pgsqlUpgrade php5-mcryptUpgrade php5-develUpgrade php53-xmlreaderUpgrade php5-calendarUpgrade php53-bz2Upgrade php53-exifUpgrade php53-pspellUpgrade php5-opcacheUpgrade php5-tokenizerUpgrade php5-pcntlUpgrade php53-zipUpgrade apache2-mod_php5Upgrade php53-wddxUpgrade php53-fastcgiUpgrade php53-intlUpgrade php53-suhosinUpgrade php5-mysqlUpgrade php53-xmlrpcUpgrade php5-zipUpgrade php53-gmpUpgrade php53-imapUpgrade php5-gettextUpgrade php5-ftpUpgrade php53-dbaUpgrade php5-odbcUpgrade php5-posixUpgrade php53-mysqlUpgrade php53-socketsUpgrade php5-gmpUpgrade php5-mbstringUpgrade php5-xmlwriterUpgrade php53-ldapUpgrade php5-zlibUpgrade php53-pearUpgrade php53-gettextUpgrade php53-bcmathUpgrade php53-curlUpgrade php53-develUpgrade php53-xslUpgrade php5-wddxUpgrade php5-dbaUpgrade php53-iconvUpgrade php53-opensslUpgrade php53-posixUpgrade php5-enchantUpgrade php53-tokenizerUpgrade php53-ftpUpgrade php53-xmlwriterUpgrade php53-shmopUpgrade php5-sysvsemUpgrade php53-sysvsemUpgrade php5-hashUpgrade php5-sqliteUpgrade php5-jsonUpgrade php53Upgrade apache2-mod_php53Upgrade php5-intlUpgrade php5-soapUpgrade php5-iconvUpgrade php53-gdUpgrade php5-xslUpgrade php5-snmpUpgrade php5-pearUpgrade php53-mbstringUpgrade php53-snmpUpgrade php5-xmlrpcUpgrade php5-exifUpgrade php53-readlineUpgrade php53-ctypeUpgrade php53-odbcUpgrade php5-bz2Upgrade php53-sysvmsgUpgrade php53-sysvshmUpgrade php53-domUpgrade php5-curlUpgrade php5-fastcgiUpgrade php5-xmlreaderUpgrade php53-sqliteUpgrade php5-domUpgrade php53-pcntlUpgrade php53-tidyUpgrade php5-fpmUpgrade php5-opensslUpgrade php5-shmopUpgrade php5-pspellUpgrade php5-pdoUpgrade php53-mcryptUpgrade php53-soapUpgrade php5-ldapUpgrade php5Upgrade php5-bcmathUpgrade php5-sysvshmUpgrade php5-socketsUpgrade php5-fileinfoUpgrade php5-ctypeUpgrade php53-fileinfoUpgrade php5-sysvmsgUpgrade php53-pdoUpgrade php53-zlibUpgrade php5-suhosinUpgrade php5-gdUpgrade php53-jsonUpgrade php53-calendar | Dec 18, 2015 | Sep 25, 2015 |
| Ubuntu | — | Upgrade libapache2-mod-php5Upgrade php5-cliUpgrade php5-cgiUpgrade php5-fpm | Nov 8, 2024 | May 16, 2016 |
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