CVE-2022-41916

Read one byte past a buffer when normalizing Unicode

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.

Heimdal es una implementación de ASN.1/DER, PKIX y Kerberos. Las versiones anteriores a la 7.7.1 son vulnerables a una vulnerabilidad de denegación de servicio en la biblioteca de validación de certificados PKI de Heimdal, lo que afecta a KDC (a través de PKINIT) y kinit (a través de PKINIT), así como a cualquier aplicación de terceros que utilice libhx509 de Heimdal. Los usuarios deben actualizar a Heimdal 7.7.1 o 7.8. No se conocen workarounds para este problema.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

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

2022-09-30 CVE Reserved
2022-11-15 CVE Published
2024-07-06 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-193: Off-by-one Error

CAPEC

References (5)

URL	Tag	Source
https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.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/202310-06	2023-10-08
https://www.debian.org/security/2022/dsa-5287	2023-10-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Heimdal Project Search vendor "Heimdal Project"		Heimdal Search vendor "Heimdal Project" for product "Heimdal"				< 7.7.1 Search vendor "Heimdal Project" for product "Heimdal" and version " < 7.7.1"		-		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
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected