CVE-2016-6296 Information
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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.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Reference
http://git.php.net/?p=php-src.git;a=commit;h=e6c48213c22ed50b2b987b479fcc1ac709394caa http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html http://openwall.com/lists/oss-security/2016/07/24/2 http://php.net/ChangeLog-5.php http://php.net/ChangeLog-7.php http://rhn.redhat.com/errata/RHSA-2016-2750.html http://www.debian.org/security/2016/dsa-3631 http://www.securityfocus.com/bid/92095 http://www.securitytracker.com/id/1036430 http://www.ubuntu.com/usn/USN-3059-1 https://bugs.php.net/72606 https://lists.debian.org/debian-lts-announce/2019/11/msg00029.html https://security.gentoo.org/glsa/201611-22 https://support.apple.com/HT207170
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
HIGH
Base Severity
9.8