CVE-2023-45233 : Security Advisory and Response
Learn about CVE-2023-45233, an infinite loop vulnerability in the EDK II Network Package, allowing unauthorized access. Find mitigation steps and impacted versions.
This article provides detailed information about CVE-2023-45233, which involves an infinite loop vulnerability in the EDK II Network Package.
Understanding CVE-2023-45233
This section delves into the impact and technical details of CVE-2023-45233.
What is CVE-2023-45233?
CVE-2023-45233 highlights a vulnerability in the EDK II Network Package, specifically in the parsing of a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by attackers to gain unauthorized access and potentially disrupt availability.
The Impact of CVE-2023-45233
The vulnerability poses a high impact on availability, with a CVSS base score of 7.5, falling under the category's "HIGH" severity. It does not directly affect confidentiality or integrity but can lead to a loss of availability.
Technical Details of CVE-2023-20657
This section elaborates on the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from an infinite loop condition in the EDK II Network Package when processing a PadN option in the IPv6 Destination Options header.
Affected Systems and Versions
The affected system is the EDK II Network Package, specifically the "edk2-stable202308" version.
Exploitation Mechanism
Attackers can exploit this vulnerability through specially crafted network packets that trigger the infinite loop condition, leading to unauthorized access.
Mitigation and Prevention
This section provides guidance on immediate steps to take and long-term security practices.
Immediate Steps to Take
It is recommended to apply the latest patches released by TianoCore to address the vulnerability.
Long-Term Security Practices
Implement network security best practices, conduct regular security assessments, and stay updated with security advisories to mitigate similar vulnerabilities.
Patching and Updates
Ensure timely installation of security patches provided by TianoCore to safeguard systems against CVE-2023-45233.