CVE-2020-24455

Published: Feb 26, 2021Modified: Jun 17, 2026

6.7

Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitability: 0.8 / Impact: 5.9

Source: NVD

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.

Affected (3)

Products: Tpm2 Software Stack Project: Tpm2 Software Stack · Fedoraproject: Fedora

Tpm2 Software Stack Project

1 product

Tpm2 Software Stack

Fedoraproject

1 product

Fedora

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Tpm2 Software Stack Project Tpm2 Software Stack	Before 2.4.3
Tpm2 Software Stack Project Tpm2 Software Stack	From 3.0.0 to 3.0.1

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 34

Related CWEs

CWE-909

Missing Initialization of Resource

The product does not initialize a critical resource.

References (10)

https://bugzilla.redhat.com/show_bug.cgi?id=1902167

Source: secure@intel.com

Issue TrackingPatchThird Party Advisory

https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3

Source: secure@intel.com

Release NotesThird Party Advisory

https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1

Source: secure@intel.com

Release NotesThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KPOENCMJU4DMT3BDNUBRK25B3DJ47UO/

Source: secure@intel.com

https://security.gentoo.org/glsa/202107-10

Source: secure@intel.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1902167