Out-of-bounds read in libtpms - CVE-2021-3623
Published: July 1, 2021
Vulnerability identifier: #VU54504
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3623
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Stefan Berger
Affected software:
libtpms
libtpms
Detailed vulnerability description
The vulnerability allows a local user to crash the system.
The vulnerability exists due to a boundary condition. A local user can use specially-crafted TPM 2 command packets containing illegal values to trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
How to mitigate CVE-2021-3623
Install updates from vendor's website.