PHP up to 5.4.44/5.5.28/5.6.12 XSLT null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in PHP up to 5.4.44/5.5.28/5.6.12. Affected by this issue is some unknown functionality of the component XSLT Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is handled as CVE-2015-6837. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in PHP up to 5.4.44/5.5.28/5.6.12 (Programming Language Software). This vulnerability affects some unknown functionality of the component XSLT Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 09/03/2015 as Version 5.6.13 as confirmed changelog entry (Website). The advisory is shared for download at secure.php.net. This vulnerability was named CVE-2015-6837 since 09/08/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 86794 (Debian DLA-341-1 : php5 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11628 (PHP Versions Prior to 5.6.13/5.5.29/5.4.45 Multiple Vulnerabilities).

Upgrading to version 5.4.45, 5.5.29 or 5.6.13 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (86794), SecurityFocus (BID 76738†), SecurityTracker (ID 1033548†) and Vulnerability Center (SBV-52596†). Entries connected to this vulnerability are available at VDB-67396, VDB-67398, VDB-67420 and VDB-67724. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86794
Nessus Name: Debian DLA-341-1 : php5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-670
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 5.4.45/5.5.29/5.6.13

Timelineinfo

09/03/2015 🔍
09/03/2015 +0 days 🔍
09/08/2015 +5 days 🔍
09/09/2015 +1 days 🔍
09/09/2015 +0 days 🔍
09/14/2015 +5 days 🔍
09/16/2015 +2 days 🔍
09/16/2015 +0 days 🔍
05/16/2016 +243 days 🔍
06/15/2022 +2221 days 🔍

Sourcesinfo

Product: php.org

Advisory: Version 5.6.13
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6837 (🔍)
GCVE (CVE): GCVE-0-2015-6837
GCVE (VulDB): GCVE-100-77716

OVAL: 🔍

SecurityFocus: 76738 - PHP 'valuePop()' Function Null Pointer Deference Denial of Service Vulnerability
SecurityTracker: 1033548
Vulnerability Center: 52596 - PHP Remote DoS due to a NULL Pointer Difference in \x27valuePop()\x27 Function - CVE-2015-6837, Medium

See also: 🔍

Entryinfo

Created: 09/16/2015 11:27
Updated: 06/15/2022 14:37
Changes: 09/16/2015 11:27 (59), 12/23/2017 13:11 (20), 06/15/2022 14:30 (3), 06/15/2022 14:34 (11), 06/15/2022 14:37 (1)
Complete: 🔍
Cache ID: 216::103

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