CVE-2021-3565
published 2021-06-04CVE-2021-3565: 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…
PriorityP432medium5.9CVSS 3.1
AVNACHPRNUINSUCHINAN
EPSS
1.33%
68.1th percentile
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | tpm2-tools | < tpm2-tools 5.0-2 (bookworm) | tpm2-tools 5.0-2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cbl2_tpm2-tools_4.2-2_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_tpm2-tools_4.2-2_on_cbl_mariner_1.0 | — | — |
| redhat | enterprise_linux | — | — |
| tpm2-tools_project | tpm2-tools | < 4.3.2 | 4.3.2 |
| tpm2-tools_project | tpm2-tools | — | — |
| tpm2-tools_project | tpm2-tools | >= 0 < 5.0-2 | 5.0-2 |
| tpm2-tools_project | tpm2-tools | >= 0 < 5.0-2 | 5.0-2 |
| tpm2-tools_project | tpm2-tools | >= 0 < 5.0-2 | 5.0-2 |
| tpm2-tools_project | tpm2-tools | >= 0 < 5.0-2 | 5.0-2 |
| tpm2-tools_project | tpm2-tools | >= 5.1 < 5.1.1 | 5.1.1 |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv5.9MEDIUM
vendor_debian5.9MEDIUM
vendor_msrc5.9MEDIUM
vendor_redhat5.9MEDIUM
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GHSA
GHSA-jxhq-r9c5-f85p: A flaw was found in tpm2-tools in versions before 5
ghsa_unreviewed·2022-05-24
CVE-2021-3565 [MEDIUM] CWE-200 GHSA-jxhq-r9c5-f85p: A flaw was found in tpm2-tools in versions before 5
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.
OSV
CVE-2021-3565: A flaw was found in tpm2-tools in versions before 5
osv·2021-06-04·CVSS 5.9
CVE-2021-3565 [MEDIUM] CVE-2021-3565: A flaw was found in tpm2-tools in versions before 5
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.
Microsoft
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 re
vendor_msrc·2021-06-08·CVSS 5.9
CVE-2021-3565 [MEDIUM] CWE-798 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 re
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this
Red Hat
tpm2-tools: fixed AES wrapping key in tpm2_import
vendor_redhat·2021-05-25·CVSS 5.9
CVE-2021-3565 [MEDIUM] CWE-665 tpm2-tools: fixed AES wrapping key in tpm2_import
tpm2-tools: fixed AES wrapping key in tpm2_import
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.
A flaw was found in tpm2-tools. 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.
Statement: Red Hat Enterprise Linux 7 is not affected by this issue, as it ships an older version of `tpm2-tools` which does not include the tpm2_import tool.
Package: tpm2-tools (Red Ha
Debian
CVE-2021-3565: tpm2-tools - A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_i...
vendor_debian·2021·CVSS 5.9
CVE-2021-3565 [MEDIUM] CVE-2021-3565: tpm2-tools - A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_i...
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.
Scope: local
bookworm: resolved (fixed in 5.0-2)
bullseye: resolved (fixed in 5.0-2)
forky: resolved (fixed in 5.0-2)
sid: resolved (fixed in 5.0-2)
trixie: resolved (fixed in 5.0-2)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1964427https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESY6HRYUKR5ZG2K5QAJQC5S6HMKZMFK7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XK5M7I66PBXSN663TSLAZ3V6TWWFCV7C/https://bugzilla.redhat.com/show_bug.cgi?id=1964427https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESY6HRYUKR5ZG2K5QAJQC5S6HMKZMFK7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XK5M7I66PBXSN663TSLAZ3V6TWWFCV7C/
2021-06-04
Published