Vulnerability Monitor

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CVE-2021-3623

A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.

Published

2022-03-02T23:15:08.623

Last Modified

2024-11-21T06:22:00.440

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

4.9

Weaknesses

Type: Secondary
CWE-787
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	libtpms_project	libtpms	< 0.6.5	Yes
Application	libtpms_project	libtpms	< 0.7.8	Yes
Application	libtpms_project	libtpms	< 0.8.4	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	fedoraproject	fedora	34	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=1976806 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/stefanberger/libtpms/commit/2e6173c Patch, Third Party Advisory ([email protected])
https://github.com/stefanberger/libtpms/commit/2f30d62 Patch, Third Party Advisory ([email protected])
https://github.com/stefanberger/libtpms/commit/7981d9a Patch, Third Party Advisory ([email protected])
https://github.com/stefanberger/libtpms/pull/223 Issue Tracking, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1976806 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/stefanberger/libtpms/commit/2e6173c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/stefanberger/libtpms/commit/2f30d62 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/stefanberger/libtpms/commit/7981d9a Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/stefanberger/libtpms/pull/223 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ (af854a3a-2127-422b-91ae-364da2661108)