AZL-6466
Dashboard / Vulnerabilities / AZL-6466
Summary: CVE-2021-20233 affecting package grub2 for versions less than 2.06~rc1-7
Details: A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References: https://nvd.nist.gov/vuln/detail/CVE-2021-20233
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
