CVE-2020-14305

kernel: memory corruption in Voice over IP nf_conntrack_h323 module

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Se encontró un fallo de escritura de memoria fuera de límites en la manera en que la funcionalidad connection tracking Voice Over IP H.323 del kernel de Linux, manejaba las conexiones en el puerto ipv6 1720. Este fallo permite a un usuario remoto no autenticado bloquear el sistema, causando una denegación de servicio. La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-06-17 CVE Reserved
2020-12-02 CVE Published
2024-04-06 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (5)

URL	Tag	Source
https://patchwork.ozlabs.org/project/netfilter-devel/patch/c2385b5c-309c-cc64-2e10-a0ef62897502%40virtuozzo.com	X_refsource_misc
https://security.netapp.com/advisory/ntap-20201210-0004	Third Party Advisory

URL	Date	SRC
https://bugs.openvz.org/browse/OVZ-7188	2024-08-04

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1850716	2020-09-29

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2020-14305	2020-09-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netapp Search vendor "Netapp"	A250 Firmware Search vendor "Netapp" for product "A250 Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	A250 Search vendor "Netapp" for product "A250"	-	-	Safe
Netapp Search vendor "Netapp"	Fas 500f Firmware Search vendor "Netapp" for product "Fas 500f Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	Fas 500f Search vendor "Netapp" for product "Fas 500f"	-	-	Safe
Netapp Search vendor "Netapp"	Aff 500f Firmware Search vendor "Netapp" for product "Aff 500f Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	Aff 500f Search vendor "Netapp" for product "Aff 500f"	-	-	Safe
Netapp Search vendor "Netapp"	Solidfire Baseboard Management Controller Firmware Search vendor "Netapp" for product "Solidfire Baseboard Management Controller Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	Solidfire Baseboard Management Controller Search vendor "Netapp" for product "Solidfire Baseboard Management Controller"	-	-	Safe
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 4.11.12 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.11.12"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.12 Search vendor "Linux" for product "Linux Kernel" and version "4.12"		-		Affected
Netapp Search vendor "Netapp"		Cloud Backup Search vendor "Netapp" for product "Cloud Backup"				-		-		Affected