CVE-2021-3905
Published: 8 November 2021
A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced by https://github.com/openvswitch/ovs/commit/640d4db788eda96bb904abcfc7de2327107bafe1 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
openvswitch Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(2.9.8-0ubuntu0.18.04.2)
|
| focal |
Not vulnerable
(2.13.3-0ubuntu0.20.04.2)
|
|
| hirsute |
Not vulnerable
(2.15.0-0ubuntu3.1)
|
|
| impish |
Released
(2.16.0-0ubuntu2.1)
|
|
| jammy |
Not vulnerable
(2.17.0~git20220105.0d1ffb7-0ubuntu1)
|
|
| trusty |
Ignored
(out of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 |
||
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 |