CVE-2022-28736

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1 (hide)

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-07-20 01:15

Updated : 2023-08-25 23:15

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

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