CVE-2021-3839
Published: 29 April 2022
A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 19.11-rc1 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
dpdk Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Released
(19.11.12-0ubuntu0.20.04.1)
|
|
| impish |
Released
(20.11.5-0ubuntu1)
|
|
| jammy |
Released
(21.11.1-0ubuntu0.3)
|
|
| kinetic |
Released
(21.11.1-0ubuntu0.3)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
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 |