CVE-2015-6831

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Summary

CVECVE-2015-6831
StatePUBLISHED
Assignermicrofocus
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-01-19 05:59:02 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionMultiple use-after-free vulnerabilities in SPL in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allow remote attackers to execute arbitrary code via vectors involving (1) ArrayObject, (2) SplObjectStorage, and (3) SplDoublyLinkedList, which are mishandled during unserialization.

Risk And Classification

Primary CVSS: v3.1 7.3 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Problem Types: CWE-416 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Php Php All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
PHP :: Sec Bug #70169 :: Use After Free Vulnerability in unserialize() with SplDoublyLinkedList af854a3a-2127-422b-91ae-364da2661108 bugs.php.net
PHP: Multiple vulnerabilities (GLSA 201606-10) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
oss-security - CVE Request: more php unserializing issues af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
PHP :: Sec Bug #70166 :: Use After Free Vulnerability in unserialize() with SPLArrayObject af854a3a-2127-422b-91ae-364da2661108 bugs.php.net
Debian -- Security Information -- DSA-3344-1 php5 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
PHP :: Sec Bug #70155 :: Use After Free Vulnerability in unserialize() with SPLArrayObject af854a3a-2127-422b-91ae-364da2661108 bugs.php.net
PHP CVE-2015-6831 Multiple Use After Free Remote Code Execution Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
PHP: PHP 5 ChangeLog af854a3a-2127-422b-91ae-364da2661108 www.php.net
PHP :: Sec Bug #70168 :: Use After Free Vulnerability in unserialize() with SplObjectStorage af854a3a-2127-422b-91ae-364da2661108 bugs.php.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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