CVE-2022-28735

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Summary

CVECVE-2022-28735
StatePUBLISHED
Assignercanonical
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-20 01:15:10 UTC
Updated2026-11-10 12:10:00 UTC
DescriptionThe GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: NVD-CWE-noinfo

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary6.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS6.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Grub2 All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GNU Project GNU GRUB affected 2.06-3 semver Linux

References

ReferenceSourceLinkTags
CVE - CVE-2022-28735 af854a3a-2127-422b-91ae-364da2661108 cve.mitre.org Third Party Advisory
July 2023 Grub Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
oss-security - [SECURITY PATCH 00/30] Multiple GRUB2 vulnerabilities - 2022/06/07 round af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Julian Andres Klode (en)

Legacy QID Mappings

  • 159883 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9471)
  • 159884 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9469)
  • 159943 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-5099)
  • 159967 Oracle Enterprise Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ELSA-2022-5095)
  • 159985 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9596)
  • 159986 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9595)
  • 161027 Oracle Enterprise Linux Security Update for grub2 (ELSA-2023-12952)
  • 181042 Debian Security Update for grub2 (CVE-2022-28735)
  • 240473 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5100)
  • 240474 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5099)
  • 240476 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5096)
  • 240477 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5095)
  • 282811 Fedora Security Update for grub2 (FEDORA-2022-27932fdd06)
  • 282866 Fedora Security Update for grub2 (FEDORA-2022-9b4f9af4ce)
  • 354332 Amazon Linux Security Advisory for grub2 : ALAS2022-2022-109
  • 354535 Amazon Linux Security Advisory for grub2 : ALAS-2022-109
  • 355137 Amazon Linux Security Advisory for grub2 : ALAS2023-2023-020
  • 355617 Amazon Linux Security Advisory for grub2 : ALAS2-2023-2146
  • 377130 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0134)
  • 377622 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0164)
  • 672021 EulerOS Security Update for grub2 (EulerOS-SA-2022-2242)
  • 672031 EulerOS Security Update for grub2 (EulerOS-SA-2022-2255)
  • 710619 Gentoo Linux GRUB Multiple Vulnerabilities (GLSA 202209-12)
  • 752217 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2035-1)
  • 752221 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2064-1)
  • 752229 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2074-1)
  • 907575 Common Base Linux Mariner (CBL-Mariner) Security Update for grub2 (27551-1)
  • 940639 AlmaLinux Security Update for grub2, (ALSA-2022:5095)
  • 940640 AlmaLinux Security Update for grub2, (ALSA-2022:5099)
  • 960155 Rocky Linux Security Update for grub2, (RLSA-2022:5095)
  • 960538 Rocky Linux Security Update for grub2, (RLSA-2022:5099)

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