Risk | Low |
Patch available | NO |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-3981 |
CWE-ID | CWE-277 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
grub Universal components / Libraries / Libraries used by multiple products |
Vendor | GNU |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU64272
Risk: Low
CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-3981
CWE-ID:
CWE-277 - Insecure inherited permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to incorrect default permissions for in grub.cfg file that are set by the application. A local user with access to the system can view contents of files and directories.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsgrub: 1.99 - 2.06
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=2024170
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AI776L35DDYPCSAAJPJM3ZEQYSFZHBJX/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.