PCRE 8.40 libpcre1 pcre_xclass.c _pcre32_xclass out-of-bounds
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability has been found in PCRE 8.40 (Programming Tool Software) and classified as problematic. This vulnerability affects the function _pcre32_xclass
of the file pcre_xclass.c of the component libpcre1. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:
The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (invalid memory read) via a crafted file.
The bug was discovered 03/23/2017. The weakness was disclosed 03/23/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2017-7244 since 03/23/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 104068 (GLSA-201710-25 : PCRE: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.
Upgrading eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (104068). The entries 98483 and 98484 are pretty similar.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 104068
Nessus Name: GLSA-201710-25 : PCRE: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
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Timeline
03/23/2017 🔍03/23/2017 🔍
03/23/2017 🔍
03/23/2017 🔍
03/23/2017 🔍
03/24/2017 🔍
10/23/2017 🔍
10/23/2017 🔍
11/15/2022 🔍
Sources
Advisory: RHSA-2018:2486⛔Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined
CVE: CVE-2017-7244 (🔍)
SecurityFocus: 97067 - libpcre Multiple Security Vulnerabilities
OSVDB: - CVE-2017-7244 - PCRE - Denial of Service Issue
See also: 🔍
Entry
Created: 03/24/2017 07:41Updated: 11/15/2022 08:00
Changes: 03/24/2017 07:41 (72), 09/13/2020 10:40 (8), 11/15/2022 08:00 (4)
Complete: 🔍
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