CVE-2021-3839

DPDK: out-of-bounds read/write in vhost_user_set_inflight_fd() may lead to crash

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha encontrado un fallo en la biblioteca vhost de DPDK. La función vhost_user_set_inflight_fd() no comprueba "msg-)payload.inflight.num_queues", causando posiblemente una lectura/escritura de memoria fuera de límites. Cualquier software usando la biblioteca DPDK vhost puede fallar como resultado de esta vulnerabilidad.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-29 CVE Reserved
2022-05-04 CVE Published
2024-04-13 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read
CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2025882	2022-11-15
https://github.com/DPDK/dpdk/commit/6442c329b9d2ded0f44b27d2016aaba8ba5844c5	2023-11-07

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-3839	2022-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dpdk Search vendor "Dpdk"		Data Plane Development Kit Search vendor "Dpdk" for product "Data Plane Development Kit"				< 22.03 Search vendor "Dpdk" for product "Data Plane Development Kit" and version " < 22.03"		-		Affected
Dpdk Search vendor "Dpdk"		Data Plane Development Kit Search vendor "Dpdk" for product "Data Plane Development Kit"				22.03 Search vendor "Dpdk" for product "Data Plane Development Kit" and version "22.03"		rc1		Affected
Dpdk Search vendor "Dpdk"		Data Plane Development Kit Search vendor "Dpdk" for product "Data Plane Development Kit"				22.03 Search vendor "Dpdk" for product "Data Plane Development Kit" and version "22.03"		rc2		Affected
Dpdk Search vendor "Dpdk"		Data Plane Development Kit Search vendor "Dpdk" for product "Data Plane Development Kit"				22.03 Search vendor "Dpdk" for product "Data Plane Development Kit" and version "22.03"		rc3		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Fast Datapath Search vendor "Redhat" for product "Enterprise Linux Fast Datapath"				7.0 Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Fast Datapath Search vendor "Redhat" for product "Enterprise Linux Fast Datapath"				8.0 Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" and version "8.0"		-		Affected