Liblouis 3.5.0 compileTranslationTable.c includeFile memory corruption

HistoryDiffrelatejsonxmlCTI

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 Liblouis 3.5.0. It has been rated as critical. Affected by this vulnerability is the function includeFile of the file compileTranslationTable.c. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2018-11684. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Liblouis 3.5.0. This issue affects the function includeFile of the file compileTranslationTable.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Liblouis 3.5.0 has a stack-based Buffer Overflow in the function includeFile in compileTranslationTable.c.

The bug was discovered 06/02/2018. The weakness was released 06/04/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-11684 since 06/03/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111184 (EulerOS 2.0 SP2 : liblouis (EulerOS-SA-2018-1222)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171589 (OpenSUSE Security Update for liblouis (openSUSE-SU-2018:2819-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111184) and SecurityFocus (BID 104324†). Entries connected to this vulnerability are available at VDB-118154, VDB-118204, VDB-118393 and VDB-118810. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Liblouis

Version

3.5.0

Website

Product: https://github.com/liblouis/liblouis/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 111184
Nessus Name: EulerOS 2.0 SP2 : liblouis (EulerOS-SA-2018-1222)
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

06/02/2018 🔍
06/03/2018 +1 days 🔍
06/04/2018 +0 days 🔍
06/04/2018 +0 days 🔍
06/04/2018 +0 days 🔍
06/30/2018 +26 days 🔍
07/20/2018 +20 days 🔍
03/21/2023 +1705 days 🔍

Sourcesinfo

Product: github.com

Advisory: 592
Status: Confirmed

CVE: CVE-2018-11684 (🔍)
GCVE (CVE): GCVE-0-2018-11684
GCVE (VulDB): GCVE-100-118811
SecurityFocus: 104324

See also: 🔍

Entryinfo

Created: 06/04/2018 15:37
Updated: 03/21/2023 09:23
Changes: 06/04/2018 15:37 (72), 02/14/2020 07:30 (3), 03/21/2023 09:21 (4), 03/21/2023 09:23 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.