This blog post discusses the PixieFAIL vulnerabilities that affect EDK II, an open source reference implementation of the UEFI specification. These vulnerabilities can be exploited during the network boot process, which is a common feature in enterprise computers and servers. The vulnerabilities in the network stack of EDK II can lead to denial of service, information leakage, remote code execution, DNS cache poisoning, and network session hijacking. The blog post also highlights that other vendors who use EDK II’s NetworkPkg module may be affected by these vulnerabilities. Proof of concept scripts to detect the vulnerabilities are provided, and guidance for fixes and mitigations is available from CERT/CC.
https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html