Arch Linux Security Advisory ASA-201611-19 ========================================== Severity: Critical Date : 2016-11-18 CVE-ID : CVE-2016-6911 CVE-2016-7568 CVE-2016-8670 CVE-2016-9138 Package : php Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package php before version 7.0.13-1 is vulnerable to multiple issues including arbitrary code execution and denial of service. Resolution ========== Upgrade to 7.0.13-1. # pacman -Syu "php>=7.0.13-1" The problems have been fixed upstream in version 7.0.13. Workaround ========== None. Description =========== - CVE-2016-6911 (denial of service) It was found that the dynamicGetbuf() function doesn't check for out- of-bounds read and returns a wrong return code, leading to denial of service. - CVE-2016-7568 (arbitrary code execution) An integer overflow flaw, leading to a heap-based buffer overflow, was found in gd. A specially crafted image, when converted to webp, could cause the application to crash or potentially execute arbitrary code. - CVE-2016-8670 (arbitrary code execution) A stack based buffer overflow was found in the dynamicGetbuf function when passing negative `rlen` as size to memcpy(). - CVE-2016-9138 (arbitrary code execution) An use after free vulnerability was found in unserialize() via DateInterval::__wakeup(), leading to arbitrary code execution. Impact ====== A remote attacker is able to execute arbitrary code or crash the application via various vectors. References ========== http://seclists.org/oss-sec/2016/q3/639 https://bugs.php.net/bug.php?id=73003 https://github.com/libgd/libgd/issues/308 https://bugs.php.net/bug.php?id=73280 http://www.openwall.com/lists/oss-security/2016/10/15/6 https://bugs.php.net/bug.php?id=73147 http://seclists.org/oss-sec/2016/q4/296 https://git.php.net/?p=php-src.git;a=commit;h=0e6fe3a4c96be2d3e88389a5776f87... https://access.redhat.com/security/cve/CVE-2016-6911 https://access.redhat.com/security/cve/CVE-2016-7568 https://access.redhat.com/security/cve/CVE-2016-8670 https://access.redhat.com/security/cve/CVE-2016-9138