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CVE-2016-4343

Date: May 21, 2016

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.

Language: C

Severity Score

Related Resources (15)

https://security-tracker.debian.org/tracker/CVE-2016-4343
https://nvd.nist.gov/vuln/detail/CVE-2016-4343
https://access.redhat.com/security/cve/CVE-2016-4343
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.openwall.com/lists/oss-security/2016/04/28/2
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-4343
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
https://bugs.php.net/bug.php?id=71331
http://www.securityfocus.com/bid/89179
https://www.mend.io/vulnerability-database/CVE-2016-4343

Severity Score

Weakness Type (CWE)

Access of Uninitialized Pointer

CWE-824

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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