Vulnerability CVE-2021-3623
Published: 2022-03-02   Modified: 2022-03-03

Description:
A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.

Type:

CWE-787

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial
Affected software
Redhat -> Enterprise linux 
Libtpms project -> Libtpms 

 References:
https://github.com/stefanberger/libtpms/pull/223
https://github.com/stefanberger/libtpms/commit/2e6173c
https://github.com/stefanberger/libtpms/commit/7981d9a
https://github.com/stefanberger/libtpms/commit/2f30d62
https://bugzilla.redhat.com/show_bug.cgi?id=1976806
Copyright 2024, cxsecurity.com

 

Back to Top