Out-of-Bounds Affecting libtpms package, versions <0.9.1-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.97% (59th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBTPMS-18674628
  • published12 Aug 2026
  • disclosed19 Oct 2021

Introduced: 19 Oct 2021

CVE-2021-3746  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Echo:latest libtpms to version 0.9.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libtpms package and not the libtpms package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.

CVSS Base Scores

version 3.1