CVE-2022-3437

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.

Se encontró una vulnerabilidad de desbordamiento de búfer en Samba dentro de las rutinas GSSAPI unwrap_des() y unwrap_des3() de Heimdal. Las rutinas de descifrado DES y Triple-DES de la biblioteca GSSAPI de Heimdal permiten un desbordamiento del búfer de escritura de longitud limitada en la memoria asignada a malloc() cuando se presenta un paquete maliciosamente pequeño. Este fallo permite a un usuario remoto enviar datos maliciosos especialmente manipulados a la aplicación, lo que puede provocar un ataque de denegación de servicio (DoS).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2022-10-10 CVE Reserved
2022-11-23 CVE Published
2024-09-02 EPSS Updated
2024-10-28 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2023/02/08/1	Mailing List
https://access.redhat.com/security/cve/CVE-2022-3437	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2137774	Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html	Mailing List
https://security.netapp.com/advisory/ntap-20230216-0008

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202309-06	2024-04-22
https://security.gentoo.org/glsa/202310-06	2024-04-22
https://www.samba.org/samba/security/CVE-2022-3437.html	2024-04-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Samba Search vendor "Samba"		Samba Search vendor "Samba" for product "Samba"				>= 4.0.0 < 4.15.11 Search vendor "Samba" for product "Samba" and version " >= 4.0.0 < 4.15.11"		-		Affected
Samba Search vendor "Samba"		Samba Search vendor "Samba" for product "Samba"				>= 4.16.0 < 4.16.6 Search vendor "Samba" for product "Samba" and version " >= 4.16.0 < 4.16.6"		-		Affected
Samba Search vendor "Samba"		Samba Search vendor "Samba" for product "Samba"				>= 4.17.0 < 4.17.2 Search vendor "Samba" for product "Samba" and version " >= 4.17.0 < 4.17.2"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				36 Search vendor "Fedoraproject" for product "Fedora" and version "36"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected