CVE-2015-8866
Summary
| CVE | CVE-2015-8866 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-05-22 01:59:05 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 9.6 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Problem Types: CWE-611 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.6 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:M/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 208.43.231.11 Git - php-src.git/commit | af854a3a-2127-422b-91ae-364da2661108 | git.php.net | |
| oss-security - Re: CVE request: PHP issues fixed in 7.0.5, 5.6.20 and 5.5.34 releases | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Patch, Third Party Advisory |
| PHP :: Bug #64938 :: libxml_disable_entity_loader setting is shared between threads | af854a3a-2127-422b-91ae-364da2661108 | bugs.php.net | Exploit, Issue Tracking, Patch, Vendor Advisory |
| PHP 'libxml_disable_entity_loader()' CVE-2015-8866 XML External Entity Injection Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| USN-2952-2: PHP regression | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | Third Party Advisory |
| PHP: PHP 5 ChangeLog | af854a3a-2127-422b-91ae-364da2661108 | www.php.net | Release Notes, Vendor Advisory |
| USN-2952-1: PHP vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | Third Party Advisory |
| [security-announce] openSUSE-SU-2016:1373-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| [security-announce] openSUSE-SU-2016:1274-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| Bug #1509817 “libxml_disable_entity_loader is not theadsafe” : Bugs : php5 package : Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | bugs.launchpad.net | Issue Tracking, Patch, Third Party Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | Third Party Advisory |
| [security-announce] SUSE-SU-2016:1277-1: important: Security update for | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| 208.43.231.11 Git - php-src.git/commit | MITRE | git.php.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.