CVE-2021-34999

Summary

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

Weaknesses

• CWE-908: CWE-908: Use of Uninitialized Resource

ADP Enrichment

CVE Program Container

Additional References

• https://www.zerodayinitiative.com/advisories/ZDI-22-073/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://www.zerodayinitiative.com/advisories/ZDI-22-073/

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