8.8 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
Low
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
14.5%
Debian Security Advisory DSA-5624-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
February 14, 2024 https://www.debian.org/security/faq
Package : edk2
CVE ID : CVE-2023-48733
Mate Kukri discovered the Debian build of EDK2, a UEFI firmware
implementation, used an insecure default configuration which could result
in Secure Boot bypass via the UEFI shell.
This updates disables the UEFI shell if Secure Boot is used.
For the oldstable distribution (bullseye), this problem has been fixed
in version 2020.11-2+deb11u2.
For the stable distribution (bookworm), this problem has been fixed in
version 2022.11-6+deb12u1. This update also addresses several security
issues in the ipv6 network stack (CVE-2022-36763, CVE-2022-36764,
CVE-2022-36765, CVE-2023-45230, CVE-2023-45229, CVE-2023-45231,
CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235)
We recommend that you upgrade your edk2 packages.
For the detailed security status of edk2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/edk2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | bookworm | all | qemu-efi-arm | < 2022.11-6+deb12u1 | qemu-efi-arm_2022.11-6+deb12u1_all.deb |
Debian | bookworm | all | edk2 | < 2022.11-6+deb12u1 | edk2_2022.11-6+deb12u1_all.deb |
Debian | bookworm | all | qemu-efi-aarch64 | < 2022.11-6+deb12u1 | qemu-efi-aarch64_2022.11-6+deb12u1_all.deb |
Debian | 11 | all | qemu-efi | < 2020.11-2+deb11u2 | qemu-efi_2020.11-2+deb11u2_all.deb |
Debian | 11 | all | edk2 | < 2020.11-2+deb11u2 | edk2_2020.11-2+deb11u2_all.deb |
Debian | bookworm | all | ovmf-ia32 | < 2022.11-6+deb12u1 | ovmf-ia32_2022.11-6+deb12u1_all.deb |
Debian | 11 | all | ovmf | < 2020.11-2+deb11u2 | ovmf_2020.11-2+deb11u2_all.deb |
Debian | 11 | all | qemu-efi-aarch64 | < 2020.11-2+deb11u2 | qemu-efi-aarch64_2020.11-2+deb11u2_all.deb |
Debian | bookworm | all | qemu-efi | < 2022.11-6+deb12u1 | qemu-efi_2022.11-6+deb12u1_all.deb |
Debian | bookworm | all | ovmf | < 2022.11-6+deb12u1 | ovmf_2022.11-6+deb12u1_all.deb |
8.8 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
Low
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
14.5%