CVE-2015-8866
CRITICAL severity · CVSS 9.6 · XML external entity (XXE)
9.6CVSS CRITICAL
Summary
ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x before 5.6.6, when PHP-FPM is used, does not isolate each thread from libxml_disable_entity_loader changes in other threads, which allows remote attackers to conduct XML External Entity (XXE) and XML Entity Expansion (XEE) attacks via a crafted XML document, a related issue to CVE-2015-5161.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2016/04/24/1 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2016/04/24/1Patch
- http://www.php.net/ChangeLog-5.phpAdvisory
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=de31324c221c1791b26350ba106cc26bad23ace9
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlAdvisory
- http://www.securityfocus.com/bid/87470Advisory