Liblouis 3.5.0 compileTranslationTable.c parseChars memory corruption

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7.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Liblouis 3.5.0. This impacts the function parseChars of the file compileTranslationTable.c. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2018-11440. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Liblouis 3.5.0. It has been declared as critical. This vulnerability affects the function parseChars of the file compileTranslationTable.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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

The bug was discovered 05/25/2018. The weakness was shared 05/25/2018 by Henri Salo (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-11440 since 05/25/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 110322 (Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : liblouis vulnerabilities (USN-3669-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu 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 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110322) and SecurityFocus (BID 104321†). The entries VDB-118154, VDB-118393, VDB-118810 and VDB-118811 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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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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VulDB Base Score: 🔍
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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: 🔍

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Nessus ID: 110322
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : liblouis vulnerabilities (USN-3669-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

05/25/2018 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
06/04/2018 +10 days 🔍
06/05/2018 +1 days 🔍
03/17/2023 +1746 days 🔍

Sourcesinfo

Advisory: USN-3669-1⛔
Researcher: Henri Salo
Status: Confirmed

CVE: CVE-2018-11440 (🔍)
GCVE (CVE): GCVE-0-2018-11440
GCVE (VulDB): GCVE-100-118204
SecurityFocus: 104321 - Liblouis CVE-2018-11440 Local Stack Based Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 05/25/2018 17:34
Updated: 03/17/2023 08:50
Changes: 05/25/2018 17:34 (72), 02/08/2020 18:01 (6), 03/17/2023 08:50 (4)
Complete: 🔍
Cache ID: 216::103

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