Description
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Published: 2021-03-18
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2571-1 openvswitch security update
Debian DLA Debian DLA DLA-3388-1 lldpd security update
Debian DLA Debian DLA DLA-3389-1 lldpd security update
Debian DSA Debian DSA DSA-4836-1 openvswitch security update
EUVD EUVD EUVD-2020-20326 A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Ubuntu USN Ubuntu USN USN-4691-1 Open vSwitch vulnerabilities
History

Wed, 03 Dec 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 13 Nov 2024 02:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9

Subscriptions

Fedoraproject Fedora
Lldpd Project Lldpd
Openvswitch Openvswitch
Redhat Enterprise Linux Openshift Container Platform Openstack Rhev Hypervisor Virtualization
Siemens Simatic Hmi Unified Comfort Panels Simatic Hmi Unified Comfort Panels Firmware Simatic Net Cp 1243-1 Simatic Net Cp 1243-1 Firmware Simatic Net Cp 1243-8 Irc Simatic Net Cp 1243-8 Irc Firmware Simatic Net Cp 1542sp-1 Simatic Net Cp 1542sp-1 Firmware Simatic Net Cp 1542sp-1 Irc Simatic Net Cp 1542sp-1 Irc Firmware Simatic Net Cp 1543-1 Simatic Net Cp 1543-1 Firmware Simatic Net Cp 1543sp-1 Simatic Net Cp 1543sp-1 Firmware Simatic Net Cp 1545-1 Simatic Net Cp 1545-1 Firmware Sinumerik One Sinumerik One Firmware Tim 1531 Irc Tim 1531 Irc Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-12-03T18:20:03.875Z

Reserved: 2020-10-27T00:00:00.000Z

Link: CVE-2020-27827

cve-icon Vulnrichment

Updated: 2024-08-04T16:25:43.547Z

cve-icon NVD

Status : Modified

Published: 2021-03-18T17:15:13.510

Modified: 2025-12-03T19:15:51.763

Link: CVE-2020-27827

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-01-13T00:00:00Z

Links: CVE-2020-27827 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses