CVE-2020-27827

high

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.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07

https://security.gentoo.org/glsa/202311-16

https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/

https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf

https://bugzilla.redhat.com/show_bug.cgi?id=1921438

Details

Source: Mitre, NVD

Published: 2021-03-18

Updated: 2023-11-26

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High