CVE-2021-43083

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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7	Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/12/20/2	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:plc4x:*:*:*:*:*:*:*:*

Information

Published : 2021-12-19 01:15

Updated : 2022-01-04 10:00

NVD link : CVE-2021-43083

Mitre link : CVE-2021-43083

JSON object : View

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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Products Affected

apache

plc4x

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