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This\nvulnerability can be exploited by an attacker to gain unauthorized \naccess and potentially lead to a loss of Confidentiality, Integrity and/or Availability.", "A security weakness was identified in EDK2, the open-source reference implementation of the UEFI specification, revealing a buffer overflow vulnerability. This vulnerability enables an unauthorized attacker within proximity on the network to transmit a specifically crafted DHCPv6 Advertise message. As a consequence, it results in the unauthorized disclosure of information and jeopardizes the availability of the system."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-45234", "public_date": "2024-01-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-45234\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-45234\nhttps://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html\nhttps://github.com/advisories/GHSA-mrjv-p9q7-rxgr"], "statement": "The discovery of a buffer overflow vulnerability in EDK2, the open-source UEFI implementation, is a significant issue due to its potential impact on system security. This flaw allows an attacker to exploit the system's vulnerability through a specially crafted DHCPv6 Advertise message, leading to unauthorized access, information leakage, and potential compromise of system availability.", "threat_severity": "Important"}