CVE-2023-4949
Memory Corruption Vulnerability in Grub-Legacy's XFS Implementation
MEDIUM
6.7
CVSS Score
Published: November 10, 2023 at 04:57 PM UTC
Updated: June 17, 2026 at 06:38 AM UTC
3 products affected across 3 vendorsXenGrubGrub
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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
PatchThird Party Advisory
Source: [email protected]
https://xenbits.xenproject.org/xsa/advisory-443.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-119CWE-190CWE-787
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