CVE-2020-8444

Gentoo Linux Security Advisory 202007-33

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of ossec-alert formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).

En OSSEC-HIDS versiones 2.7 hasta 3.5.0, el componente del servidor responsable del análisis de registro (ossec-analysisd) es vulnerable a un uso de la memoria previamente liberada durante el procesamiento de mensajes con formato ossec-alert (recibidos desde agentes remotos autenticados y entregados a la cola de procesamiento de analysisd por ossec-remoted).

Multiple vulnerabilities have been found in OSSEC, the worst of which could result in the arbitrary execution of code. Versions less than 3.6.0 are affected.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-30 CVE Reserved
2020-01-30 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2025-05-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-416: Use After Free

CAPEC

References (4)

URL	Tag	Source
https://github.com/ossec/ossec-hids/issues/1821	Third Party Advisory

URL	Date	SRC
https://github.com/ossec/ossec-hids/issues/1817	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202007-33	2022-09-12
https://www.ossec.net	2022-09-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ossec Search vendor "Ossec"		Ossec Search vendor "Ossec" for product "Ossec"				>= 2.7 <= 3.5.0 Search vendor "Ossec" for product "Ossec" and version " >= 2.7 <= 3.5.0"		-		Affected