CVE-2022-28736 (GCVE-0-2022-28736)

Vulnerability from cvelistv5 – Published: 2023-07-20 00:23 – Updated: 2025-02-13 16:32
VLAI?
Summary
There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.
Severity ?
6.4 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
GNU Project GNU GRUB Affected: 0 , < 2.06-3 (semver)
Create a notification for this product.
Credits
Chris Coulson
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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