CVE-2015-7803

php: NULL pointer dereference in phar_get_fp_offset()

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The phar_get_entry_data function in ext/phar/util.c in PHP before 5.5.30 and 5.6.x before 5.6.14 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a .phar file with a crafted TAR archive entry in which the Link indicator references a file that does not exist.

La función phar_get_entry_data en ext/phar/util.c en PHP en versiones anteriores a 5.5.30 y 5.6.x en versiones anteriores a 5.6.14 permite a atacantes remotos causar una denegación de servicio (referencia a puntero NULL y caída de aplicación) a través de un archivo .phar con una entrada de archivo TAR manipulada en la cual el indicador Link referencia a un archivo que no existe.

A flaw was found in the way the way PHP's Phar extension parsed Phar archives. A specially crafted archive could cause PHP to crash or, possibly, execute arbitrary code when opened.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. Multiple flaws were discovered in the way PHP performed object unserialization. Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code. Multiple flaws were found in the way the way PHP's Phar extension parsed Phar archives. A specially crafted archive could cause PHP to crash or, possibly, execute arbitrary code when opened.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-10-09 CVE Reserved
2015-10-28 CVE Published
2024-08-06 CVE Updated
2025-04-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (16)

URL	Tag	Source
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=d698f0ae51f67c9cce870b09c59df3d6ba959244	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2015/10/05/8	Mailing List
http://www.php.net/ChangeLog-5.php	X_refsource_confirm
http://www.securityfocus.com/bid/76959	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00052.html	2023-11-07
http://lists.opensuse.org/opensuse-updates/2016-01/msg00099.html	2023-11-07
http://lists.opensuse.org/opensuse-updates/2016-02/msg00037.html	2023-11-07
http://www.debian.org/security/2015/dsa-3380	2023-11-07
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.461720	2023-11-07
http://www.ubuntu.com/usn/USN-2786-1	2023-11-07
https://bugs.php.net/bug.php?id=69720	2023-11-07
https://security.gentoo.org/glsa/201606-10	2023-11-07
https://support.apple.com/HT205637	2023-11-07
https://access.redhat.com/security/cve/CVE-2015-7803	2016-03-15
https://bugzilla.redhat.com/show_bug.cgi?id=1271081	2016-03-15

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"				<= 5.5.29 Search vendor "Php" for product "Php" and version " <= 5.5.29"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.1 Search vendor "Php" for product "Php" and version "5.6.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.2 Search vendor "Php" for product "Php" and version "5.6.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.3 Search vendor "Php" for product "Php" and version "5.6.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.4 Search vendor "Php" for product "Php" and version "5.6.4"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.5 Search vendor "Php" for product "Php" and version "5.6.5"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.6 Search vendor "Php" for product "Php" and version "5.6.6"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.7 Search vendor "Php" for product "Php" and version "5.6.7"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.8 Search vendor "Php" for product "Php" and version "5.6.8"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.9 Search vendor "Php" for product "Php" and version "5.6.9"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.10 Search vendor "Php" for product "Php" and version "5.6.10"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.11 Search vendor "Php" for product "Php" and version "5.6.11"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.12 Search vendor "Php" for product "Php" and version "5.6.12"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.6.13 Search vendor "Php" for product "Php" and version "5.6.13"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.11.1 Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.1"		-		Affected