PHP up to 5.6.33/7.0.27/7.1.14/7.2.2 http_fopen_wrapper.c php_stream_url_wrap_http_ex HTTP Response memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in PHP up to 5.6.33/7.0.27/7.1.14/7.2.2 and classified as critical. This impacts the function php_stream_url_wrap_http_ex of the file ext/standard/http_fopen_wrapper.c. Performing a manipulation as part of HTTP Response results in memory corruption. This vulnerability is identified as CVE-2018-7584. The attack can be initiated remotely. Additionally, an exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in PHP up to 5.6.33/7.0.27/7.1.14/7.2.2 (Programming Language Software). It has been classified as critical. This affects the function php_stream_url_wrap_http_ex of the file ext/standard/http_fopen_wrapper.c. The manipulation as part of a HTTP Response leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while parsing an HTTP response in the php_stream_url_wrap_http_ex function in ext/standard/http_fopen_wrapper.c. This subsequently results in copying a large string.

The bug was discovered 03/01/2018. The weakness was released 03/01/2018 with Nanyang Technological University (Website). It is possible to read the advisory at php.net. This vulnerability is uniquely identified as CVE-2018-7584 since 03/01/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 107218 (PHP 7.1.x < 7.1.15 Stack Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197084 (Ubuntu Security Notification for Php5, Php7.0, Php7.1 Vulnerabilities (USN-3600-1)).

Upgrading 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 Exploit-DB (44846), Tenable (107218) and SecurityFocus (BID 103204†). Entries connected to this vulnerability are available at VDB-80326, VDB-80327, VDB-83183 and VDB-83184. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107218
Nessus Name: PHP 7.1.x < 7.1.15 Stack Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867216
OpenVAS Name: Fedora Update for php FEDORA-2018-e8bc8d2784
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

03/01/2018 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/02/2018 +1 days 🔍
03/08/2018 +6 days 🔍
06/18/2024 +2294 days 🔍

Sourcesinfo

Product: php.org

Advisory: RHSA-2019:2519
Organization: Nanyang Technological University
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7584 (🔍)
GCVE (CVE): GCVE-0-2018-7584
GCVE (VulDB): GCVE-100-113991

OVAL: 🔍

SecurityFocus: 103204 - PHP CVE-2018-7584 Stack Buffer Overflow Vulnerability
SecurityTracker: 1041607

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/02/2018 08:00
Updated: 06/18/2024 11:59
Changes: 03/02/2018 08:00 (65), 01/09/2020 19:36 (20), 02/16/2023 13:04 (6), 06/18/2024 11:59 (14)
Complete: 🔍
Cache ID: 216::103

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