CVE-2021-43083
CVSS V2 Medium 6.5
CVSS V3 High 8.8
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.
Overview
- CVE ID
- CVE-2021-43083
- Assigner
- security@apache.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-19T09:15:06
- Last Modified Date
- 2022-01-04T18:00:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:apache:plc4x:*:*:*:*:*:*:*:* | 1 | OR | 0.9.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7 | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2021/12/20/2 | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43083 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43083 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:39:03 | Added to TrackCVE | |||
| 2022-12-06 04:20:41 | 2021-12-19T09:15Z | 2021-12-19T09:15:06 | CVE Published Date | updated |
| 2022-12-06 04:20:41 | 2022-01-04T18:00:37 | CVE Modified Date | updated | |
| 2022-12-06 04:20:41 | Analyzed | Vulnerability Status | updated |