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

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
dpdk Launchpad, Ubuntu, Debian	bionic	Not vulnerable (code not present)
	upstream	Needs triage
	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)

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

References

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