CVE catalog

CVE-2021-3565

tpm2-tools affected and fixed versions

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.

Severity: Medium · CVSS 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Published: May 25, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.33% · Oct 27, 2026

Projects and upstream resources

[tpm2-tools][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debiantrixie	tpm2-tools	`5.7-1`	Fixed	[CVE-2021-3565]
Debiansid	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debiansid	tpm2-tools	`5.8-1`	Fixed	[CVE-2021-3565]
Debianforky	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debianforky	tpm2-tools	`5.8-1`	Fixed	[CVE-2021-3565]
Debianbookworm	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debianbookworm	tpm2-tools	`5.4-1`	Fixed	[CVE-2021-3565]

Showing 8 fix observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	tpm2-tools	`5.0-2`	UnknownSource applicability is not established	Provider not reported
Debianbookworm	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debianbookworm	tpm2-tools	`5.4-1`	Fixed	[CVE-2021-3565]
Debianforky	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debianforky	tpm2-tools	`5.8-1`	Fixed	[CVE-2021-3565]
Debiansid	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debiansid	tpm2-tools	`5.8-1`	Fixed	[CVE-2021-3565]
Debiantrixie	tpm2-tools	`5.0-2`	FixedDistribution-reported fixed boundary	[CVE-2021-3565]
Debiantrixie	tpm2-tools	`5.7-1`	Fixed	[CVE-2021-3565]
Opensuseleap 15.2	tpm2.0-tools	`4.1-lp152.2.3.1`	UnknownSource applicability is not established	[OPENSUSE-SU-2021:0934-1]Feb 4, 2026, 4:06:37 AM UTC
Opensuseleap 15.3	tpm2.0-tools	`4.3.0-4.3.1`	UnknownSource applicability is not established	[OPENSUSE-SU-2021:1998-1]Feb 4, 2026, 4:33:37 AM UTC
Suselinux enterprise module for basesystem 15 sp2	tpm2.0-tools	`4.1-3.3.1`	UnknownSource applicability is not established	[SUSE-SU-2021:1999-1]Feb 4, 2026, 2:25:51 AM UTC
Suselinux enterprise module for basesystem 15 sp3	tpm2.0-tools	`4.3.0-4.3.1`	UnknownSource applicability is not established	[SUSE-SU-2021:1998-1]Feb 4, 2026, 3:36:10 AM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "tpm2-tools",
      "status": "fixed",
      "release": "sid",
      "version": "5.8-1"
    },
    {
      "name": "tpm2-tools",
      "status": "fixed",
      "release": "forky",
      "version": "5.8-1"
    },
    {
      "name": "tpm2-tools",
      "status": "fixed",
      "release": "trixie",
      "version": "5.7-1"
    },
    {
      "name": "tpm2-tools",
      "status": "fixed",
      "release": "bookworm",
      "version": "5.4-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 989148,
      "name": "tpm2-tools",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "5.0-2"
    },
    {
      "bug": 989148,
      "name": "tpm2-tools",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "5.0-2"
    },
    {
      "bug": 989148,
      "name": "tpm2-tools",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "5.0-2"
    },
    {
      "bug": 989148,
      "name": "tpm2-tools",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "5.0-2"
    }
  ],
  "distribution_packages": [
    {
      "name": "tpm2-tools",
      "fixed_version": "5.0-2",
      "applicability_unknown": true
    },
    {
      "name": "tpm2.0-tools",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.0-4.3.1"
            }
          ]
        }
      ],
      "release": "leap 15.3",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2021:1998-1",
      "fixed_version": "4.3.0-4.3.1",
      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2021:1998-1",
      "provider_updated_at": "2026-02-04T04:33:37.555704Z",
      "applicability_unknown": true
    },
    {
      "name": "tpm2.0-tools",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1-lp152.2.3.1"
            }
          ]
        }
      ],
      "release": "leap 15.2",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2021:0934-1",
      "fixed_version": "4.1-lp152.2.3.1",
      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2021:0934-1",
      "provider_updated_at": "2026-02-04T04:06:37.093481Z",
      "applicability_unknown": true
    },
    {
      "name": "tpm2.0-tools",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.0-4.3.1"
            }
          ]
        }
      ],
      "release": "linux enterprise module for basesystem 15 sp3",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2021:1998-1",
      "fixed_version": "4.3.0-4.3.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2021:1998-1",
      "provider_updated_at": "2026-02-04T03:36:10.067763Z",
      "applicability_unknown": true
    },
    {
      "name": "tpm2.0-tools",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1-3.3.1"
            }
          ]
        }
      ],
      "release": "linux enterprise module for basesystem 15 sp2",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2021:1999-1",
      "fixed_version": "4.1-3.3.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2021:1999-1",
      "provider_updated_at": "2026-02-04T02:25:51.471728Z",
      "applicability_unknown": true
    }
  ]
}

[Debian bug #989148]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[tpm2-tools]Unknown
Details (2)
- 5.4-1 · amd64 · bookworm
  Fixed · Fixed: 5.0-2
  dsa · tpm2-tools · debian · bookworm; dsa · tpm2-tools · debian · 12
- 5.4-1 · arm64 · bookworm
  Fixed · Fixed: 5.0-2
  dsa · tpm2-tools · debian · bookworm; dsa · tpm2-tools · debian · 12

[Debian 13 (Trixie)]

[tpm2-tools]Unknown
Source package: [tpm2-tools]
Details (2)
- 5.7-1 · amd64 · trixie
  Fixed · Fixed: 5.0-2
  dsa · tpm2-tools · debian · 13
- 5.7-1+b1 · arm64 · trixie
  Fixed · Fixed: 5.0-2
  dsa · tpm2-tools · debian · 13

Observed: Oct 23, 2026, 5:58:33 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]