CVE-2020-27827
Published: 13 January 2021
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
lldpd Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://github.com/lldpd/lldpd/commit/7d60bf30effc4c88f17f3d58ecaa72479f16d4be |
||
|
openvswitch Launchpad, Ubuntu, Debian |
bionic |
Released
(2.9.7-0ubuntu0.18.04.2)
|
| focal |
Released
(2.13.1-0ubuntu0.20.04.3)
|
|
| groovy |
Released
(2.13.1-0ubuntu1.2)
|
|
| hirsute |
Released
(2.15.0-0ubuntu1)
|
|
| impish |
Released
(2.15.0-0ubuntu1)
|
|
| jammy |
Released
(2.15.0-0ubuntu1)
|
|
| kinetic |
Released
(2.15.0-0ubuntu1)
|
|
| lunar |
Released
(2.15.0-0ubuntu1)
|
|
| mantic |
Released
(2.15.0-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.5.9-0ubuntu0.16.04.2)
|
|
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 |