CVE-2023-4949 Memory Corruption Vulnerability in Grub-Legacy's XFS Implementation

2023-11-1016:57:03

CWE-190

CWE-119

Google

www.cve.org

8.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.2%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Grub-Legacy",
    "vendor": "Free Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "0.97",
        "status": "affected",
        "version": "0",
        "versionType": "git"
      }
    ]
  }
]