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CVE-2021-3839

Publication date 29 April 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
dpdk 22.10 kinetic
Fixed 21.11.1-0ubuntu0.3
22.04 LTS jammy
Fixed 21.11.1-0ubuntu0.3
21.10 impish
Fixed 20.11.5-0ubuntu1
20.04 LTS focal
Fixed 19.11.12-0ubuntu0.20.04.1
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected

Notes

mdeslaur

introduced in 19.11-rc1

Severity score breakdown

Parameter Value
Base score 7.5 · High
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

References

Related Ubuntu Security Notices (USN)

Other references