CVE-2021-34999: OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34999?
CVE-2021-34999 is rated as a medium severity vulnerability.
How do I fix CVE-2021-34999?
To fix CVE-2021-34999, you should update the OpenBSD Kernel to the latest version that addresses this vulnerability.
Who is affected by CVE-2021-34999?
CVE-2021-34999 affects installations of the OpenBSD Kernel that have not been patched.
What type of vulnerability is CVE-2021-34999?
CVE-2021-34999 is an uninitialized memory information disclosure vulnerability.
What are the potential impacts of CVE-2021-34999?
The potential impact of CVE-2021-34999 includes the unauthorized disclosure of sensitive information to a local attacker.