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Status published
Medium
CVE-2021-3623
A flaw was found in libtpms. The flaw can be...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/
- https://bugzilla.redhat.com/show_bug.cgi?id=1976806
- https://github.com/stefanberger/libtpms/pull/223
- https://github.com/stefanberger/libtpms/commit/2f30d62
- https://github.com/stefanberger/libtpms/commit/7981d9a
- https://github.com/stefanberger/libtpms/commit/2e6173c
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Affected Vendor
Affected Software
libtpms
Vulnerable Versions:
Fixed-In - libtpms 0.6.5, libtpms 0.7.8, libtpms 0.8.4
Timeline
Official Publish:
March 2nd, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H