CVE-2021-3773

A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2004949	Issue Tracking Third Party Advisory
https://citizenlab.ca/2024/07/vulnerabilities-in-vpns-paper-presented-at-the-privacy-enhancing-technologies-symposium-2024/
https://www.oracle.com/security-alerts/cpujul2022.html	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Configuration 4 (hide)

OR	cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:::::::*
	cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:::::::*
	cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:::::::*

History

No history.

Information

Published : 2022-02-16 19:15

Updated : 2024-07-16 18:15

NVD link : CVE-2021-3773

Mitre link : CVE-2021-3773

CVE.ORG link : CVE-2021-3773

JSON object : View

Products Affected

oracle

communications_cloud_native_core_policy
communications_cloud_native_core_network_exposure_function
communications_cloud_native_core_binding_support_function

fedoraproject

fedora

redhat

enterprise_linux

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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