UBUNTU-CVE-2023-48733

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Source
https://ubuntu.com/security/CVE-2023-48733
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-48733.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-48733
Upstream
Downstream
Related
Published
2024-02-14T00:00:00Z
Modified
2025-07-16T07:46:26.888831Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2@0~20160408.ffea0a2c-2ubuntu0.2+esm3?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0~20150106.*

0~20150106.5c2d456b-2

0~20160104.*

0~20160104.c2a892d7-1

0~20160408.*

0~20160408.ffea0a2c-2
0~20160408.ffea0a2c-2ubuntu0.1
0~20160408.ffea0a2c-2ubuntu0.2
0~20160408.ffea0a2c-2ubuntu0.2+esm1
0~20160408.ffea0a2c-2ubuntu0.2+esm3

Ubuntu:Pro:18.04:LTS / edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2@0~20180205.c0d9813c-2ubuntu0.3+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0~20170911.*

0~20170911.5dfba97c-1

0~20171010.*

0~20171010.234dbcef-1

0~20171027.*

0~20171027.76fd5a66-1

0~20171205.*

0~20171205.a9212288-1

0~20180105.*

0~20180105.0bc94c74-1

0~20180205.*

0~20180205.c0d9813c-1
0~20180205.c0d9813c-2
0~20180205.c0d9813c-2ubuntu0.1
0~20180205.c0d9813c-2ubuntu0.2
0~20180205.c0d9813c-2ubuntu0.3
0~20180205.c0d9813c-2ubuntu0.3+esm1
0~20180205.c0d9813c-2ubuntu0.3+esm2

Ubuntu:20.04:LTS / edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2@0~20191122.bd85bf54-2ubuntu3.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0~20191122.bd85bf54-2ubuntu3.5

Affected versions

0~20190606.*

0~20190606.20d2e5a1-2ubuntu1

0~20190828.*

0~20190828.37eef910-3
0~20190828.37eef910-4

0~20191122.*

0~20191122.bd85bf54-1
0~20191122.bd85bf54-1ubuntu1
0~20191122.bd85bf54-2
0~20191122.bd85bf54-2ubuntu1
0~20191122.bd85bf54-2ubuntu2
0~20191122.bd85bf54-2ubuntu3
0~20191122.bd85bf54-2ubuntu3.1
0~20191122.bd85bf54-2ubuntu3.2
0~20191122.bd85bf54-2ubuntu3.3
0~20191122.bd85bf54-2ubuntu3.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ovmf",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.5"
        },
        {
            "binary_name": "qemu-efi",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.5"
        },
        {
            "binary_name": "qemu-efi-aarch64",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.5"
        },
        {
            "binary_name": "qemu-efi-arm",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.5"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS / edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2@2022.02-3ubuntu0.22.04.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2022.02-3ubuntu0.22.04.2

Affected versions

2021.*

2021.08~rc0-2
2021.08-3
2021.11~rc1-1
2021.11-1
2021.11-2

2022.*

2022.02~rc1-1
2022.02~rc1-1ubuntu1
2022.02-1
2022.02-2
2022.02-3
2022.02-3ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ovmf",
            "binary_version": "2022.02-3ubuntu0.22.04.2"
        },
        {
            "binary_name": "ovmf-ia32",
            "binary_version": "2022.02-3ubuntu0.22.04.2"
        },
        {
            "binary_name": "qemu-efi",
            "binary_version": "2022.02-3ubuntu0.22.04.2"
        },
        {
            "binary_name": "qemu-efi-aarch64",
            "binary_version": "2022.02-3ubuntu0.22.04.2"
        },
        {
            "binary_name": "qemu-efi-arm",
            "binary_version": "2022.02-3ubuntu0.22.04.2"
        }
    ],
    "availability": "No subscription required"
}