PHP 7.1.5 php_pcre_replace_impl out-of-bounds read

EntryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.1$5k-$25k0.00

A vulnerability has been found in PHP 7.1.5 (Programming Language Software) and classified as critical. This vulnerability affects the function php_pcre_replace_impl. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-125. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 08/03/2018. The weakness was presented 08/02/2018 (Website). The advisory is shared for download at bugs.php.net. This vulnerability was named CVE-2017-9118 since 05/21/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/12/2020).

The vulnerability scanner Nessus provides a plugin with the ID 117477 (openSUSE Security Update : php5 (openSUSE-2018-998)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171484 (SUSE Enterprise Linux Security Update for php5 (SUSE-SU-2018:2682-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 104551) and Tenable (117477). See 119310, 119871, 122549 and 122558 for similar entries.

Productinfoedit

Type

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.1

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2infoedit

AVACAuCIA
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Information disclosure
CWE: CWE-125
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 117477
Nessus Name: openSUSE Security Update : php5 (openSUSE-2018-998)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: bugs.php.net

Timelineinfoedit

05/21/2017 🔍
06/25/2018 +400 days 🔍
08/02/2018 +37 days 🔍
08/02/2018 +0 days 🔍
08/03/2018 +1 days 🔍
08/03/2018 +0 days 🔍
09/12/2018 +40 days 🔍
09/13/2018 +1 days 🔍
03/12/2020 +546 days 🔍

Sourcesinfoedit

Product: https://www.php.org/

Advisory: bugs.php.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9118 (🔍)
SecurityFocus: 104551 - PHP 'ext/exif/exif.c' Denial of Service Vulnerability

See also: 🔍

Entryinfoedit

Created: 08/03/2018 07:29 AM
Updated: 03/12/2020 08:35 PM
Changes: (6) vulnerability_discoverydate advisory_confirm_url countermeasure_name countermeasure_date source_securityfocus_date source_securityfocus_class
Complete: 🔍

Comments

No comments yet. Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!