CVE-2021-34999

OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability

State
Published
Severity
3.8 Low
Published
May 7, 2024
Updated
Sep 18, 2024
Reserved
Jun 17, 2021

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Description

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.

Scores

CVSSScoreVectorSource
3.03.8 LowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:Nzdi

Weaknesses

  • CWE-908 Use of Uninitialized Resource

Affected Products

ProductVersions
KernelOpenBSD
  • OpenBSD 6.9Affected

References

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