CVE-2022-32166

ovs - buffer over-read

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

ovs versiones v0.90.0 hasta v2.5.0, son vulnerables a una lectura excesiva del buffer de la pila en el archivo flow.c. Una comparación no segura de la función "minimasks" podría conllevar a un acceso a una región de memoria no mapeada. Esta vulnerabilidad es capaz de bloquear el software, modificar la memoria y una posible ejecución remota

USN-5698-1 fixed a vulnerability in Open. This update provides the corresponding update for Ubuntu 16.04 ESM. It was discovered that Open vSwitch incorrectly handled comparison of certain minimasks. A remote attacker could use this issue to cause Open vSwitch to crash, resulting in a denial of service, or possibly execute arbitrary code.

*Credits: Mend Vulnerability Research Team (MVR)

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2022-05-31 CVE Reserved
2022-09-28 CVE Published
2025-05-21 CVE Updated
2025-05-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (3)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2022/10/msg00036.html	Mailing List
https://www.mend.io/vulnerability-database/CVE-2022-32166	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73	2023-11-07

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 0.90.0 <= 2.5.0 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 0.90.0 <= 2.5.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected