An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.

Original description

The description as published by the source.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Fix status by distribution

Fixed packages published by each distribution for this CVE

• Debian DEBIAN-CVE-2023-48733 edk2 Fixed in: 2020.11-2+deb11u2
• Ubuntu UBUNTU-CVE-2023-48733 edk2

References

• advisory github.com
• report bugs.launchpad.net
• report bugs.launchpad.net
• report nvd.nist.gov
• web lists.debian.org
• web openwall.com