CVE-2015-6837 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before 2.9.2 is used, does not consider the possibility of a NULL valuePop return value before proceeding with a free operation during initial error checking, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted XML document, a different vulnerability than CVE-2015-6838.
Source:
MITRE
Description Last Modified:
05/16/2016
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.5 HIGH
Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
(V3 legend)
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
Access Vector (AV):
Network
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
Partial
Additional Information:
Allows disruption of service
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Change History
7 change records found
- show changes
CVE Modified by MITRE -
11/3/2017 9:29:08 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.debian.org/security/2015/dsa-3358 [No Types Assigned] |
CVE Modified by MITRE -
9/16/2017 9:29:05 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securitytracker.com/id/1033548 [No Types Assigned] |
CVE Modified by MITRE -
11/29/2016 10:02:06 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://security.gentoo.org/glsa/201606-10 [No Types Assigned] |
CVE Modified by MITRE -
11/28/2016 2:40:38 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/76738 [No Types Assigned] |
Modified Analysis -
5/18/2016 4:41:12 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
Record truncated, showing 500 of 3914 characters.
View Entire Change Record
Configuration 1
AND
OR
*cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
*cpe:2.3:a:php: |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:N/C:N/I:N/A:P) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Added |
CWE |
|
NVD-CWE-Other |
| Added |
Evaluator Description |
|
<a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a> |
| Changed |
Reference Type |
https://bugs.php.net/bug.php?id=69782 No Types Assigned |
https://bugs.php.net/bug.php?id=69782 Exploit |
CVE Translated -
5/18/2016 6:45:04 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Translation |
|
Record truncated, showing 500 of 587 characters.
View Entire Change Record
La función xsl_function_php en ext/xsl/xsl/xsltprocessor.c en PHP en versiones anteriores a 5.4.45, 5.5.x en versiones anteriores a 5.5.29 y 5.6.x en versiones anteriores a 5.6.13, cuando se utiliza libxml2 en versiones anteriores a 2.9.2, no considera la posibilidad de un retorno NULL valuePop antes de proceder a una operación libre durante la comprobación inicial de errores, lo que permite a atacantes remotos provocar una denegación de servicio (referencia a puntero NULO y caída de aplicación) |
| Removed |
Translation |
Record truncated, showing 500 of 585 characters.
View Entire Change Record
La función xsl_function_php en ext/xsl/xsl/xsltprocessor.c en PHP en versiones anteriores a 5.4.45, 5.5.x en versiones anteriores a 5.5.29 y 5.6.x en versiones anteriores a 5.6.13, cuando se utiliza libxml2 en versiones anteriores a 2.9.2, no considera la posibilidad de un NULL valuePop antes de proceder a una operación libre durante la comprobación de errores inicial, lo que permite a atacantes remotos provocar una denegación de servicio (en referencia a un puntero NULL y caída de aplicación) a |
|
Initial CVE Analysis -
5/17/2016 10:12:14 AM
Quick Info
CVE Dictionary Entry:
CVE-2015-6837
NVD Published Date:
05/16/2016
NVD Last Modified:
11/03/2017
|