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.
References
| Link | Resource |
|---|---|
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20230825-0002/ | |
| https://www.openwall.com/lists/oss-security/2022/06/07/5 | Mailing List Third Party Advisory |
Configurations
History
25 Aug 2023, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
28 Jul 2023, 15:32
| Type | Values Removed | Values Added |
|---|---|---|
| References | (MISC) https://www.openwall.com/lists/oss-security/2022/06/07/5 - Mailing List, Third Party Advisory | |
| References | (MISC) https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 - Third Party Advisory | |
| First Time |
Gnu grub2
Gnu |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CPE | cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* | |
| CWE | CWE-416 |
20 Jul 2023, 01:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-07-20 01:15
Updated : 2023-12-10 15:14
NVD link : CVE-2022-28736
Mitre link : CVE-2022-28736
CVE.ORG link : CVE-2022-28736
JSON object : View
Products Affected
gnu
- grub2
CWE
CWE-416
Use After Free