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HIGH · 8.1

CVE-2023-4949

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 ...

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
GnuGrub<= 0.97
XenXen-

Related Weaknesses (CWE)

CWE-119CWE-190CWE-787

References

FAQ

What is CVE-2023-4949?

CVE-2023-4949 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...

How severe is CVE-2023-4949?

CVE-2023-4949 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-4949?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Grub, Xen Xen.