CVE-2021-3773
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.
Overview
- CVE ID
- CVE-2021-3773
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-02-16T19:15:08
- Last Modified Date
- 2023-02-24T14:41:18
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.14 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.15 | 5.15.15 |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2004949 | Issue Tracking Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3773 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3773 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:48:34 | Added to TrackCVE | |||
| 2022-12-06 10:00:17 | 2022-02-16T19:15Z | 2022-02-16T19:15:08 | CVE Published Date | updated |
| 2022-12-06 10:00:17 | 2022-07-25T18:16:33 | CVE Modified Date | updated | |
| 2022-12-06 10:00:17 | Modified | Vulnerability Status | updated | |
| 2022-12-06 10:00:22 | References | updated | ||
| 2022-12-30 15:13:10 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2022-12-30 15:13:11 | Weakness Enumeration | update | ||
| 2023-02-24 15:12:15 | 2023-02-24T14:41:18 | CVE Modified Date | updated | |
| 2023-02-24 15:12:15 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |