| Name | CVE-2023-48733 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3852-1, DSA-5624-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| edk2 (PTS) | bullseye (security), bullseye | 2020.11-2+deb11u2 | fixed |
| bookworm, bookworm (security) | 2022.11-6+deb12u1 | fixed |
| sid, trixie | 2024.11-4 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2024/02/14/4
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137