CVE-2022-28736
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-28736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-28736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-28736
- Downstream
- Related
- Published
- 2023-07-20T01:15:10Z
- Modified
- 2025-08-09T19:01:28Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
There's a use-after-free vulnerability in grubcmdchainloader() 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.
- References