SB2021063040 - Information disclosure in TianoCore EDK II
Published: June 30, 2021
Security Bulletin ID
SB2021063040
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Inadequate Encryption Strength (CVE-ID: CVE-2021-28213)
CWE-ID: CWE-326 - Inadequate Encryption Strength
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to presence of an encrypted example private key in the IpSecDxe.efi. An attacker can decrypt the private key and gain unauthorized access to the system.
Remediation
Install update from vendor's website.