CVE-2021-35000 LOW

CVE-2021-35000: OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability

Vendor Openbsd
Product Kernel
Weakness CWE-908
Published May 7, 2024
Last update September 18, 2024

CVSS base score

3.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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-16112.

Key dates

02Disclosure timeline

May 7, 2024 CVE published
September 18, 2024 Record updated