CVE-2016-4343

php: Uninitialized pointer in phar_make_dirstream()

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función phar_make_dirstream en ext/phar/dirstream.c en PHP en versiones anteriores a 5.6.18 y 7.x en versiones anteriores a 7.0.3 no maneja correctamente archivos ././@LongLink de tamaño cero, lo que permite a atacantes remotos provocar una denegación de servicio (referencia a puntero no inicializado) o posiblemente tener otro impacto no especificado a través de un archivo TAR manipulado.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-04-28 CVE Reserved
2016-05-22 CVE Published
2024-01-07 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-456: Missing Initialization of a Variable
CWE-824: Access of Uninitialized Pointer

CAPEC

References (12)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/04/28/2	Mailing List
http://www.securityfocus.com/bid/89179	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
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722	Third Party Advisory

URL	Date	SRC
https://bugs.php.net/bug.php?id=71331	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html	2022-07-20
http://php.net/ChangeLog-5.php	2022-07-20
http://php.net/ChangeLog-7.php	2022-07-20
http://rhn.redhat.com/errata/RHSA-2016-2750.html	2022-07-20
https://access.redhat.com/security/cve/CVE-2016-4343	2016-11-15
https://bugzilla.redhat.com/show_bug.cgi?id=1332454	2016-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				< 5.5.36 Search vendor "Php" for product "Php" and version " < 5.5.36"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 5.6.0 < 5.6.18 Search vendor "Php" for product "Php" and version " >= 5.6.0 < 5.6.18"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.0.0 < 7.0.3 Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.0.3"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2"		-		Affected