CVEvulnerability
CVE-2022-28736
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-07-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
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.
Affected configurations
• gnu grub2 (>= 2.00 < 2.06-3)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230825-0002/ security.netapp.com
- https://www.openwall.com/lists/oss-security/2022/06/07/5 Mailing List, Third Party Advisory
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230825-0002/ security.netapp.com
- https://www.openwall.com/lists/oss-security/2022/06/07/5 Mailing List, Third Party Advisory