high
8.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2023-45234: Buffer Overflow in EDK II Network Package

First published: Tue Jan 16 2024(Updated: )

EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Credit: infosec@edk2.groups.io infosec@edk2.groups.io

Affected SoftwareAffected VersionHow to fix
debian/edk2<=0~20181115.85588389-3+deb10u3<=2020.11-2+deb11u1<=2020.11-2+deb11u2<=2022.11-6
2022.11-6+deb12u1
2024.02-2
ubuntu/edk2<0~20191122.
0~20191122.
ubuntu/edk2<2022.02-3ubuntu0.22.04.2
2022.02-3ubuntu0.22.04.2
ubuntu/edk2<2023.05-2ubuntu0.1
2023.05-2ubuntu0.1
Tianocore EDK II<=202311

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-45234?

    CVE-2023-45234 is identified as a high-severity vulnerability due to its potential for unauthorized access and information disclosure.

  • How do I fix CVE-2023-45234?

    To mitigate CVE-2023-45234, update the affected EDK2 package to a version that addresses this vulnerability, such as 0~20191122 for Ubuntu Focal or 2022.11-6 for Debian.

  • Which software is affected by CVE-2023-45234?

    CVE-2023-45234 affects the EDK2 package in various versions across several distributions, including Ubuntu and Debian.

  • What is the nature of CVE-2023-45234?

    CVE-2023-45234 is a buffer overflow vulnerability that occurs when processing DNS Servers options from a DHCPv6 Advertise message.

  • Can CVE-2023-45234 lead to remote code execution?

    Yes, CVE-2023-45234 can potentially allow an attacker to execute arbitrary code, leading to significant security risks.

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