Denial Of Service (DoS)

2024-07-0310:09:01

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

liblouis vulnerability

input length

dos

out-of-bounds read

translation dictionaries

application crash

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

Low

JSON

liblouis.so is vulnerable to a Denial Of Service (DoS). The vulnerability is due to an out-of-bounds read caused by the matchCurrentInput function inside lou_translateString.c not checking the input string’s length, allowing attackers to crash the application by crafting an input file with certain translation dictionaries.