AZL-6467
Dashboard / Vulnerabilities / AZL-6467
Summary: CVE-2021-3418 affecting package grub2 for versions less than 2.06~rc1-7
Details: If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.
References: https://nvd.nist.gov/vuln/detail/CVE-2021-3418
Affected packages
Package
Name: grub2
Purl: pkg:rpm/azure-linux/grub2
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -2.06~rc1-7
Affected versions
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
