VDB-122029 · CVE-2018-14447 · ID 109

libConfuse 3.2.1 lexer.l trim_whitespace out-of-bounds

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in libConfuse 3.2.1. It has been classified as critical. The affected element is the function trim_whitespace of the file lexer.l. This manipulation causes out-of-bounds. The identification of this vulnerability is CVE-2018-14447. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in libConfuse 3.2.1. It has been declared as critical. Affected by this vulnerability is the function trim_whitespace of the file lexer.l. 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 confidentiality, integrity, and availability. The summary by CVE is:

trim_whitespace in lexer.l in libConfuse v3.2.1 has an out-of-bounds read.

The bug was discovered 07/17/2018. The weakness was shared 07/20/2018 (Website). The advisory is shared at hac425.unaux.com. This vulnerability is known as CVE-2018-14447 since 07/20/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111983 (Debian DLA-1470-1 : confuse 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 277603 (Fedora Security Update for mingw-libconfuse (FEDORA-2019-a8f918005c)).

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 vulnerability database at Tenable (111983). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

libConfuse

Version

3.2.1

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 111983
Nessus Name: Debian DLA-1470-1 : confuse security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/17/2018 🔍
07/20/2018 +2 days 🔍
07/20/2018 +0 days 🔍
07/20/2018 +0 days 🔍
07/21/2018 +1 days 🔍
08/18/2018 +28 days 🔍
08/20/2018 +2 days 🔍
04/25/2023 +1709 days 🔍

Sourcesinfo

Advisory: 109
Status: Not defined

CVE: CVE-2018-14447 (🔍)
GCVE (CVE): GCVE-0-2018-14447
GCVE (VulDB): GCVE-100-122029

Entryinfo

Created: 07/21/2018 09:49
Updated: 04/25/2023 08:42
Changes: 07/21/2018 09:49 (70), 03/09/2020 08:40 (3), 04/25/2023 08:40 (4), 04/25/2023 08:42 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.