Vulnerability Description
The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Grub2 | >= 2.00, < 2.06-3 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28735Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230825-0002/
- https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing ListThird Party Advisory
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28735Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230825-0002/
- https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing ListThird Party Advisory
FAQ
What is CVE-2022-28735?
CVE-2022-28735 is a vulnerability with a CVSS score of 6.7 (MEDIUM). The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 ...
How severe is CVE-2022-28735?
CVE-2022-28735 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-28735?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Grub2.