CVE-2020-27827 is a denial-of-service vulnerability affecting multiple versions of OpenvSwitch, as well as products from Fedora, lldpd_project, Red Hat, and Siemens. Attackers can exploit this flaw by sending specially crafted LLDP packets, leading to memory exhaustion and system unavailability. Rated with a CVSS score of 7.5 (High), this vulnerability requires no user interaction or privileges for exploitation. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.8CPE matchmatch criteria | cpe:2.3:a:lldpd_project:lldpd:*:*:*:*:*:*:*:* | ||
>= 2.6.0, < 2.6.9CPE matchmatch criteria | cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* | ||
>= 2.7.0, < 2.7.12CPE matchmatch criteria | cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* | ||
>= 2.8.0, < 2.8.10CPE matchmatch criteria | cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* | ||
>= 2.9.0, < 2.9.8CPE matchmatch criteria | cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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.
Mar 9, 2021lldp/openvswitch: denial of service via externally triggered memory leak
Jan 13, 2021