CVE-2016-5771
Summary
| CVE | CVE-2016-5771 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-08-07 10:59:19 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-416 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:L/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| PHP :: Sec Bug #72433 :: Use After Free Vulnerability in PHP's GC algorithm and unserialize | af854a3a-2127-422b-91ae-364da2661108 | bugs.php.net | Exploit, Issue Tracking, Vendor Advisory |
| Document Display | HPE Support Center | af854a3a-2127-422b-91ae-364da2661108 | h20566.www2.hpe.com | Third Party Advisory |
| oss-security - Re: CVE for PHP 5.5.37 issues | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Patch, Third Party Advisory |
| Fixed ##72433: Use After Free Vulnerability in PHP's GC algorithm and… · php/php-src@3f627e5 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Third Party Advisory |
| [security-announce] openSUSE-SU-2016:1761-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| Debian -- Security Information -- DSA-3618-1 php5 | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | Third Party Advisory |
| PHP 'ext/spl/spl_array.c' Use After Free Remote Code Execution Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| About the security content of macOS Sierra 10.12 - Apple Support | af854a3a-2127-422b-91ae-364da2661108 | support.apple.com | Third Party Advisory |
| openSUSE-SU-2016:1922-1: moderate: Security update for php5 | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| APPLE-SA-2016-09-20 macOS Sierra 10.12 | af854a3a-2127-422b-91ae-364da2661108 | lists.apple.com | Broken Link, Mailing List |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | Third Party Advisory |
| PHP: PHP 5 ChangeLog | af854a3a-2127-422b-91ae-364da2661108 | php.net | Patch, Release Notes, Vendor Advisory |
| 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.