Out-of-bounds read in Trusted Firmware-A - CVE-2022-47630
Published: January 17, 2023
Vulnerability identifier: #VU71207
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-47630
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Trusted Firmware-A
Trusted Firmware-A
Software vendor:
Linaro Limited
Linaro Limited
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a boundary condition in the X.509 parser used to
parse boot certificates in TF-A trusted boot. A local user can supply a specially crafted X.509 certificate to trigger an out-of-bounds read and gain access to sensitive information on the system.
Remediation
Install updates from vendor's website.