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CVE-2022-0669

Published: 29 April 2022

A flaw was found in dpdk. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.

Notes

AuthorNote
mdeslaur
introduced in 19.11-rc1

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

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 6.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H