Vulnerability CVE-2020-24455
Published: 2021-02-26

Description:
Missing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via local access. This affects tpm2-tss before 3.0.1 and before 2.4.3.

Type:

CWE-909

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Tpm2 software stack project -> Tpm2 software stack 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=1902167
https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1
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