PHP opcache use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in PHP. The impacted element is an unknown function of the component opcache. The manipulation results in use after free. This vulnerability is identified as CVE-2015-1351. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in PHP (Programming Language Software) (unknown version). Affected is an unknown code block of the component opcache. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Use-after-free vulnerability in the _zend_shared_memdup function in zend_shared_alloc.c in the OPcache extension in PHP through 5.6.7 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

The weakness was released 01/08/2015 by Xinchen Hui as Fixed #68677 as confirmed git commit (GIT Repository). The advisory is available at git.php.net. This vulnerability is traded as CVE-2015-1351 since 01/24/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 83035 (PHP 5.6.x < 5.6.8 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10005 (PHP Prior to 5.6.8/5.5.24/5.4.40 Multiple Remote Code Execution Vulnerabilities).

Applying the patch Fixed #68677 is able to eliminate this problem. The bugfix is ready for download at git.php.net. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (100964), Tenable (83035), SecurityFocus (BID 71929†), SecurityTracker (ID 1031757†) and Vulnerability Center (SBV-53061†). Further details are available at bugzilla.redhat.com. Entries connected to this vulnerability are available at VDB-69187, VDB-75008, VDB-75135 and VDB-75809. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83035
Nessus Name: PHP 5.6.x < 5.6.8 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2015-511
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: Fixed #68677

Timelineinfo

01/08/2015 🔍
01/08/2015 +0 days 🔍
01/24/2015 +16 days 🔍
02/17/2015 +24 days 🔍
02/18/2015 +1 days 🔍
03/30/2015 +40 days 🔍
04/23/2015 +24 days 🔍
09/30/2015 +160 days 🔍
10/01/2015 +1 days 🔍
03/10/2022 +2352 days 🔍

Sourcesinfo

Product: php.org

Advisory: Fixed #68677
Researcher: Xinchen Hui
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-1351 (🔍)
GCVE (CVE): GCVE-0-2015-1351
GCVE (VulDB): GCVE-100-69186
X-Force: 100964 - PHP opcache component code execution, High Risk
SecurityFocus: 71929
SecurityTracker: 1031757
Vulnerability Center: 53061 - PHP <=5.6.7 Remote DoS or Other Impact Vulnerability in OPcache Extension, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/18/2015 09:58
Updated: 03/10/2022 14:19
Changes: 02/18/2015 09:58 (70), 02/01/2018 07:15 (12), 03/10/2022 14:19 (3)
Complete: 🔍
Cache ID: 216::103

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