Vulnerability DatabaseCVE-2020-24455
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CVE-2020-24455
February 26, 2021
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.
Related Resources (9)
https://security-tracker.debian.org/tracker/CVE-2020-24455
https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1
https://github.com/tpm2-software/tpm2-tss/commit/9536b79cd5a13884a7e4de7a571f72530180c20b
https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
https://security.gentoo.org/glsa/202107-10
https://bugzilla.redhat.com/show_bug.cgi?id=1902167
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KPOENCMJU4DMT3BDNUBRK25B3DJ47UO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KPOENCMJU4DMT3BDNUBRK25B3DJ47UO/
https://github.com/tpm2-software/tpm2-tss/commit/bf24b0ef0fa8de9300a323f70a097a1afd818439
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CVSS v4
Base Score:
8.4
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.7
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
CVSS v2
Base Score:
4.6
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
EPSS
Base Score:
0.10