CVE-2016-4343

The phar_make_dirstream function in ext/phar/dirstream.c in PHP before 5.6.18 and 7.x before 7.0.3 mishandles zero-size ././@LongLink files, which allows remote attackers to cause a denial of service (uninitialized pointer dereference) or possibly have unspecified other impact via a crafted TAR archive.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://php.net/ChangeLog-7.php	Release Notes Vendor Advisory
http://php.net/ChangeLog-5.php	Release Notes Vendor Advisory
https://bugs.php.net/bug.php?id=71331	Exploit Issue Tracking Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/04/28/2	Mailing List Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731	Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149	Third Party Advisory
http://www.securityfocus.com/bid/89179	Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html	Mailing List Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::

Configuration 2 (hide)

cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*

Information

Published : 2016-05-21 18:59

Updated : 2022-07-20 09:31

NVD link : CVE-2016-4343

Mitre link : CVE-2016-4343

JSON object : View

CWE

CWE-824

Access of Uninitialized Pointer

Products Affected

opensuse

opensuse

php

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://php.net/ChangeLog-7.php", "name": "http://php.net/ChangeLog-7.php", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://php.net/ChangeLog-5.php", "name": "http://php.net/ChangeLog-5.php", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://bugs.php.net/bug.php?id=71331", "name": "https://bugs.php.net/bug.php?id=71331", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2016/04/28/2", "name": "[oss-security] 20160428 [CVE Requests] PHP issues", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731", "name": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149", "name": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.securityfocus.com/bid/89179", "name": "89179", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html", "name": "openSUSE-SU-2016:1357", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722", "name": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html", "name": "RHSA-2016:2750", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The phar_make_dirstream function in ext/phar/dirstream.c in PHP before 5.6.18 and 7.x before 7.0.3 mishandles zero-size ././@LongLink files, which allows remote attackers to cause a denial of service (uninitialized pointer dereference) or possibly have unspecified other impact via a crafted TAR archive."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-824"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-4343", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2016-05-22T01:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.5.36"}, {"cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.6.18", "versionStartIncluding": "5.6.0"}, {"cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "7.0.3", "versionStartIncluding": "7.0.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-07-20T16:31Z"}

8.8 /10