high
8.8
CWE
119 787
Advisory Published
CVE Published
Updated

CVE-2023-45230: 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 via a long server ID option in DHCPv6 client. 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
Tianocore EDK II
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 EDK2<=202311
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
<=202311

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2023-45230?

    CVE-2023-45230 has a high severity as it can lead to unauthorized access and potential loss of confidentiality, integrity, and availability.

  • How do I fix CVE-2023-45230?

    To fix CVE-2023-45230, update EDK II to a version greater than 202311, or apply the appropriate patches if using compatible distributions such as Ubuntu or Debian.

  • What software is affected by CVE-2023-45230?

    CVE-2023-45230 affects Tianocore EDK II and various versions across Ubuntu and Debian packages.

  • How can CVE-2023-45230 be exploited?

    An attacker can exploit CVE-2023-45230 by sending a long server ID option in DHCPv6, leading to a buffer overflow.

  • Is there a workaround for CVE-2023-45230 if I cannot update immediately?

    A potential workaround for CVE-2023-45230 is to disable DHCPv6 on affected systems until an update can be applied.

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