Out-of-bounds read in Trusted Firmware-A - CVE-2022-47630

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Main Vulnerability Database Vulnerabilities #VU71207

Out-of-bounds read in Trusted Firmware-A - CVE-2022-47630

Published: January 17, 2023


Vulnerability identifier: #VU71207
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2022-47630
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

Trusted Firmware-A
openEuler
Anolis OS
arm-trusted-firmware
arm-trusted-firmware-armv8
arm-trusted-firmware-armv8-doc

How to mitigate CVE-2022-47630

Install updates from vendor's website.

arm-trusted-firmware - update to 1.6-3
arm-trusted-firmware-armv8 - update to 1.6-3
arm-trusted-firmware-armv8 - update to 2.8-3
arm-trusted-firmware-armv8-doc - update to 2.8-3

External References

Related Security Bulletins