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.
Advisories
Source ID Title
EUVD EUVD EUVD-2022-33175 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.
Ubuntu USN Ubuntu USN USN-6355-1 GRUB2 vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 24 Oct 2024 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2025-02-13T16:32:37.356Z

Reserved: 2022-04-05T21:59:08.761Z

Link: CVE-2022-28736

cve-icon Vulnrichment

Updated: 2024-08-03T06:03:52.084Z

cve-icon NVD

Status : Modified

Published: 2023-07-20T01:15:10.400

Modified: 2024-11-21T06:57:50.070

Link: CVE-2022-28736

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-06-07T17:00:00Z

Links: CVE-2022-28736 - Bugzilla

cve-icon OpenCVE Enrichment

No data.