CVE-2023-4949

Memory Corruption Vulnerability in Grub-Legacy's XFS Implementation

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Published Nov 10, 2023 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Description

An attacker with local access to a system (either through a disk or external drive) can present a modified XFS partition to grub-legacy in such a way to exploit a memory corruption in grub’s XFS file system implementation.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Free Software Foundation

Grub-Legacy

unaffected

Version	Status	Constraints
`0`	affected	≤ 0.97

Configuration 1 [-]

cpe:2.3:a:gnu:grub:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-54785	An attacker with local access to a system (either through a disk or external drive) can present a modified XFS partition to grub-legacy in such a way to exploit a memory corruption in grub’s XFS file system implementation.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.256% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://xenbits.xenproject.org/xsa/advisory-443.html

History

No history.

Subscriptions

Gnu Grub

Xen Xen

Weaknesses

Sources

CVE record Updated: Sep 3, 2024, 5:29 PM

Status: PUBLISHED
Assigner: Google
Published: Nov 10, 2023, 4:57 PM
Updated: Sep 3, 2024, 5:29 PM
Reserved: Sep 13, 2023, 3:42 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 7:44 AM

Updated: Aug 2, 2024, 7:44 AM

NVD Updated: Jun 17, 2026, 6:38 AM

Status: Modified
Published: Nov 10, 2023, 5:15 PM
Modified: Jun 17, 2026, 6:38 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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