rhsa-2024_0437
Vulnerability from csaf_redhat
Published
2024-01-25 11:14
Modified
2024-11-24 11:54
Summary
Red Hat Security Advisory: grub2 security update
Notes
Topic
An update for grub2 is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.
Security Fix(es):
* grub2: bypass the GRUB password protection feature (CVE-2023-4001)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for grub2 is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.\n\nSecurity Fix(es):\n\n* grub2: bypass the GRUB password protection feature (CVE-2023-4001)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2024:0437", "url": "https://access.redhat.com/errata/RHSA-2024:0437" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "2224951", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2224951" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_0437.json" } ], "title": "Red Hat Security Advisory: grub2 security update", "tracking": { "current_release_date": "2024-11-24T11:54:30+00:00", "generator": { "date": "2024-11-24T11:54:30+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2024:0437", "initial_release_date": "2024-01-25T11:14:31+00:00", "revision_history": [ { "date": "2024-01-25T11:14:31+00:00", "number": "1", "summary": "Initial version" }, { "date": "2024-01-25T11:14:31+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-24T11:54:30+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product": { "name": "Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product_id": 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"grub2-tools-minimal-1:2.06-27.el9_0.16.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product_id": "BaseOS-9.0.0.Z.EUS:grub2-tools-minimal-1:2.06-27.el9_0.16.x86_64" }, "product_reference": "grub2-tools-minimal-1:2.06-27.el9_0.16.x86_64", "relates_to_product_reference": "BaseOS-9.0.0.Z.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product_id": "BaseOS-9.0.0.Z.EUS:grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.aarch64" }, "product_reference": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.aarch64", "relates_to_product_reference": "BaseOS-9.0.0.Z.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product_id": "BaseOS-9.0.0.Z.EUS:grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.ppc64le" }, "product_reference": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.ppc64le", "relates_to_product_reference": "BaseOS-9.0.0.Z.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)", "product_id": "BaseOS-9.0.0.Z.EUS:grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.x86_64" }, "product_reference": "grub2-tools-minimal-debuginfo-1:2.06-27.el9_0.16.x86_64", "relates_to_product_reference": "BaseOS-9.0.0.Z.EUS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Maxim Suhanov" ] } ], "cve": "CVE-2023-4001", "cwe": { "id": "CWE-290", "name": "Authentication Bypass by Spoofing" }, "discovery_date": "2023-07-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2224951" } ], "notes": [ { "category": "description", "text": "An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the \"/boot/\" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat\u0027s version of grub2 and does not affect the upstream package.", "title": "Vulnerability description" }, { "category": "summary", "text": "grub2: bypass the GRUB password protection feature", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "BaseOS-9.0.0.Z.EUS:grub2-1:2.06-27.el9_0.16.src", "BaseOS-9.0.0.Z.EUS:grub2-common-1:2.06-27.el9_0.16.noarch", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.aarch64", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.ppc64le", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.x86_64", "BaseOS-9.0.0.Z.EUS:grub2-debugsource-1:2.06-27.el9_0.16.aarch64", 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"https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/", "url": "https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/" } ], "release_date": "2024-01-09T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2024-01-25T11:14:31+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "BaseOS-9.0.0.Z.EUS:grub2-1:2.06-27.el9_0.16.src", "BaseOS-9.0.0.Z.EUS:grub2-common-1:2.06-27.el9_0.16.noarch", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.aarch64", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.ppc64le", "BaseOS-9.0.0.Z.EUS:grub2-debuginfo-1:2.06-27.el9_0.16.x86_64", "BaseOS-9.0.0.Z.EUS:grub2-debugsource-1:2.06-27.el9_0.16.aarch64", "BaseOS-9.0.0.Z.EUS:grub2-debugsource-1:2.06-27.el9_0.16.ppc64le", 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.