CVE-2021-43083

Published Dec 19, 2021

Last updated 3 years ago

Overview

Description
Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the industrial networks growing more and more together.
Source
security@apache.org
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
6.5
Impact score
6.4
Exploitability score
8
Vector string
AV:N/AC:L/Au:S/C:P/I:P/A:P

Weaknesses

nvd@nist.gov
CWE-191
security@apache.org
CWE-119

Social media

Hype score
Not currently trending

Configurations