| Name | CVE-2023-49721 |
| Description | An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. 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) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| incus (PTS) | sid, trixie | 6.0.0-1 | fixed |
| lxd (PTS) | bookworm | 5.0.2-5 | fixed |
| sid, trixie | 5.0.2+git20231211.1364ae4-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| incus | source | (unstable) | (not affected) | | | |
| lxd | source | (unstable) | (not affected) | | | |
Notes
- lxd <not-affected> (Debian uses OVMF as packaged/fixed in the EDK2 package)
- incus <not-affected> (Debian uses OVMF as packaged/fixed in the EDK2 package)
https://www.openwall.com/lists/oss-security/2024/02/14/4
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139