Vulnerability Name:

CVE-2016-4343 (CCN-112803)

Assigned:2016-04-28
Published:2016-04-28
Updated:2022-07-20
Summary: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 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-824
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2016-4343

Source: SUSE
Type: Mailing List, Third Party Advisory
openSUSE-SU-2016:1357

Source: MISC
Type: Release Notes, Vendor Advisory
http://php.net/ChangeLog-5.php

Source: MISC
Type: Release Notes, Vendor Advisory
http://php.net/ChangeLog-7.php

Source: CCN
Type: RHSA-2016-2750
Moderate: rh-php56 security, bug fix, and enhancement update

Source: REDHAT
Type: Third Party Advisory
RHSA-2016:2750

Source: CCN
Type: oss-sec Mailing List, Thu, 28 Apr 2016 11:57:38 -0400 (EDT)
Re: [CVE Requests] PHP issues

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20160428 [CVE Requests] PHP issues

Source: BID
Type: Third Party Advisory, VDB Entry
89179

Source: CCN
Type: BID-89179
PHP CVE-2016-4343 Uninitialized Pointer Denial of Service Vulnerability

Source: CCN
Type: PHP Web site
Sec Bug #71331 Uninitialized pointer in phar_make_dirstream()

Source: CONFIRM
Type: Exploit, Issue Tracking, Vendor Advisory
https://bugs.php.net/bug.php?id=71331

Source: XF
Type: UNKNOWN
php-cve20164343-code-exec(112803)

Source: CONFIRM
Type: Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731

Source: CONFIRM
Type: Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149

Source: CONFIRM
Type: Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-4343

Vulnerable Configuration:Configuration 1:
  • cpe:/a:php:php:*:*:*:*:*:*:*:* (Version < 5.5.36)
  • OR cpe:/a:php:php:*:*:*:*:*:*:*:* (Version >= 5.6.0 and < 5.6.18)
  • OR cpe:/a:php:php:*:*:*:*:*:*:*:* (Version >= 7.0.0 and < 7.0.3)

    • Configuration 2:
  • cpe:/o:opensuse:opensuse:13.2:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:php:php:5.5.31:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20164343
    V
    		CVE-2016-4343
    2022-09-02
    oval:com.ubuntu.xenial:def:201643430000000
    V
    		CVE-2016-4343 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-05-22
    oval:com.ubuntu.precise:def:20164343000
    V
    		CVE-2016-4343 on Ubuntu 12.04 LTS (precise) - medium.
    2016-05-21
    oval:com.ubuntu.trusty:def:20164343000
    V
    		CVE-2016-4343 on Ubuntu 14.04 LTS (trusty) - medium.
    2016-05-21
    oval:com.ubuntu.xenial:def:20164343000
    V
    		CVE-2016-4343 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-05-21
    BACK
    php php *
    php php *
    php php *
    opensuse opensuse 13.2
    php php 5.5.31