CVE-2021-3499

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-3499
A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.

5.6 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1949188 Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:ovn:ovn-kubernetes:*:*:*:*:*:*:*:*
History

12 Feb 2023, 23:41

Type Values Removed Values Added
Summary A vulnerability was found in OVN Kubernetes where the Egress Firewall does not reliably apply firewall rules when there is multiple dns rules. It could lead to potentially lose of confidentiality, integrity or availability of a service. A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.
References
  • {'url': 'https://access.redhat.com/security/cve/CVE-2021-3499', 'name': 'https://access.redhat.com/security/cve/CVE-2021-3499', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHBA-2021:1550', 'name': 'https://access.redhat.com/errata/RHBA-2021:1550', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 21:21

Type Values Removed Values Added
Summary A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service. A vulnerability was found in OVN Kubernetes where the Egress Firewall does not reliably apply firewall rules when there is multiple dns rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.
References
  • (MISC) https://access.redhat.com/security/cve/CVE-2021-3499 -
  • (MISC) https://access.redhat.com/errata/RHBA-2021:1550 -

15 Jun 2021, 16:46

Type Values Removed Values Added
CVSS v2 : 7.5
v3 : 9.8 		v2 : 6.8
v3 : 5.6

14 Jun 2021, 15:22

Type Values Removed Values Added
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1949188 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1949188 - Issue Tracking, Third Party Advisory
CWE CWE-863
CPE cpe:2.3:a:ovn:ovn-kubernetes:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8

02 Jun 2021, 16:28

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-02 16:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-3499

Mitre link : CVE-2021-3499

CVE.ORG link : CVE-2021-3499

JSON object : View

Products Affected

ovn

  • ovn-kubernetes
CWE
CWE-863

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