Description
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Published: 2021-02-11
Score: 7.5 High
EPSS: 5.8% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2571-1 openvswitch security update
Debian DSA Debian DSA DSA-4852-1 openvswitch security update
EUVD EUVD EUVD-2020-23167 A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Ubuntu USN Ubuntu USN USN-4729-1 Open vSwitch vulnerability
History

Wed, 23 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Openvswitch Openvswitch
Redhat Enterprise Linux Openstack
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-04-23T19:46:26.834Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2020-35498

cve-icon Vulnrichment

Updated: 2024-08-04T17:02:08.207Z

cve-icon NVD

Status : Modified

Published: 2021-02-11T18:15:15.677

Modified: 2025-04-23T20:15:20.000

Link: CVE-2020-35498

cve-icon Redhat

Severity : Important

Publid Date: 2021-02-10T00:00:00Z

Links: CVE-2020-35498 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses