CVE-2023-48733
Published: 14 February 2024
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
edk2 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Released
(0~20191122.bd85bf54-2ubuntu3.5)
|
|
| jammy |
Released
(2022.02-3ubuntu0.22.04.2)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Released
(2023.05-2ubuntu0.1)
|
|
| noble |
Released
(2023.11-7)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.7 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |