CVE-2020-24455

MEDIUM

TPM2 <3.0.1, <2.4.3 - Privilege Escalation

Title source: llm
STIX 2.1

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.

References (5)

Core 5
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1902167
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202107-10

Scores

CVSS v3 6.7
EPSS 0.0059
EPSS Percentile 43.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-909
Status published
Products (2)
fedoraproject/fedora 34
tpm2_software_stack_project/tpm2_software_stack < 2.4.3
Published Feb 26, 2021
Tracked Since Feb 18, 2026