PHP up to 5.5.35/5.6.21/7.0.6 locale_methods.c get_icu_value_internal out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in PHP up to 5.5.35/5.6.21/7.0.6 and classified as critical. This issue affects the function get_icu_value_internal of the file ext/intl/locale/locale_methods.c. The manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2016-5093. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in PHP up to 5.5.35/5.6.21/7.0.6 (Programming Language Software). It has been rated as critical. This issue affects the function get_icu_value_internal of the file ext/intl/locale/locale_methods.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.

The weakness was released 08/07/2016 (Website). It is possible to read the advisory at php.net. The identification of this vulnerability is CVE-2016-5093 since 05/26/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 91900 (Debian DLA-533-1 : 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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168907 (OpenSuSE Security Update for php5 (openSUSE-SU-2016:1553-1)).

Upgrading to version 5.5.36, 5.6.22 or 7.0.7 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91900) and SecurityFocus (BID 90946†). Entries connected to this vulnerability are available at VDB-67396, VDB-67398, VDB-67420 and VDB-67724. Statistical analysis made it clear that VulDB provides the best quality 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: 8.6
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 91900
Nessus Name: Debian DLA-533-1 : php5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865775
OpenVAS Name: SuSE Update for php5 openSUSE-SU-2016:1553-1 (php5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.5.36/5.6.22/7.0.7
Patch: github.com

Timelineinfo

05/25/2016 🔍
05/26/2016 +1 days 🔍
06/29/2016 +34 days 🔍
07/01/2016 +2 days 🔍
08/07/2016 +37 days 🔍
08/07/2016 +0 days 🔍
08/08/2016 +1 days 🔍
09/13/2022 +2227 days 🔍

Sourcesinfo

Product: php.org

Advisory: 72241
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5093 (🔍)
GCVE (CVE): GCVE-0-2016-5093
GCVE (VulDB): GCVE-100-90611

OVAL: 🔍

SecurityFocus: 90946 - PHP CVE-2016-5093 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 08/08/2016 15:19
Updated: 09/13/2022 06:50
Changes: 08/08/2016 15:19 (67), 03/22/2019 07:13 (13), 09/13/2022 06:36 (5), 09/13/2022 06:50 (1)
Complete: 🔍
Cache ID: 216::103

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