CVE-2020-35498
Published: 10 February 2021
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.
Priority
Status
Package | Release | Status |
---|---|---|
openvswitch Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
xenial |
Released
(2.5.9-0ubuntu0.16.04.3)
|
|
bionic |
Released
(2.9.8-0ubuntu0.18.04.2)
|
|
focal |
Released
(2.13.1-0ubuntu0.20.04.4)
|
|
groovy |
Released
(2.13.1-0ubuntu1.3)
|
|
trusty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |