CVE-2021-34999

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-34999
OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. . Was ZDI-CAN-14540.

3.8 /10

CVSS v3 : LOW

V3 Legend

Vector : AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Exploitability : 2.0 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-22-073/
Configurations

No configuration.

History

18 Sep 2024, 19:15

Type Values Removed Values Added
Summary (en) OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14540. (en) OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. . Was ZDI-CAN-14540.

08 May 2024, 13:15

Type Values Removed Values Added
Summary
  • (es) Vulnerabilidad de divulgación de información de memoria no inicializada de enrutamiento de multidifusión del kernel de OpenBSD. Esta vulnerabilidad permite a atacantes locales revelar información confidencial sobre las instalaciones afectadas de OpenBSD Kernel. Un atacante primero debe obtener la capacidad de ejecutar código con pocos privilegios en el sistema de destino para poder explotar esta vulnerabilidad. La falla específica existe en la implementación del enrutamiento de multidifusión. El problema se debe a la falta de una inicialización adecuada de la memoria antes de acceder a ella. Un atacante puede aprovechar esto junto con otras vulnerabilidades para escalar privilegios y ejecutar código arbitrario en el contexto del kernel. Era ZDI-CAN-14540.

07 May 2024, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-07 23:15

Updated : 2024-09-18 19:15

NVD link : CVE-2021-34999

Mitre link : CVE-2021-34999

CVE.ORG link : CVE-2021-34999

JSON object : View

Products Affected

No product.

CWE
CWE-908

Use of Uninitialized Resource