CVE-2021-3565

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 04-06-2021 02:15

Last modified: - 25-04-2022 09:49

Total changes: - 5

Description

A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.

Common Vulnerability Scoring System (CVSS)

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

High

Attack complexity

Network

Attack vector

None

Availability

High

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

5.9

Base score

2.2

3.6

Exploitability score

Impact score

Verification logic

vendor=tpm2-tools_project AND product=tpm2-tools AND versionEndExcluding=4.3.2

vendor=tpm2-tools_project AND product=tpm2-tools AND versionStartIncluding=5.1 AND versionEndExcluding=5.1.1

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=8.0

vendor=fedoraproject AND product=fedora AND version=33

vendor=fedoraproject AND product=fedora AND version=34

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1964427
FEDORA-2021-00a15ad850-Mailing List, Third Party Advisory
FEDORA-2021-c970c02748-Mailing List, Third Party Advisory

Keywords

CVE-2021-3565

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-3565

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures