PT-2023-31243 · Unknown+1 · Grub Legacy+1

Published 2023-11-10 · Updated 2023-11-20 · CVE-2023-4949

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions grub-legacy (affected versions not specified)

Description An attacker with local access to a system can present a modified XFS partition to grub-legacy, exploiting a memory corruption in grub's XFS file system implementation.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Memory Corruption

Integer Overflow

Weakness Enumeration

CWE-119

CWE-787

CWE-190

Related Identifiers

CVE-2023-4949

Affected Products

Debian

Grub Legacy

References · 7

• https://osv.dev/vulnerability/CVE-2023-4949 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-4949 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-4949 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-4949 · Security Note
• https://xenbits.xenproject.org/xsa/advisory-443.html · Patch
• https://t.me/cvenotify/60806 · Telegram Post
• https://twitter.com/CVEnew/status/1723026359092482280 · Twitter Post