CVE-2021-3746 is a medium-severity vulnerability in libtpms, affecting versions before 0.8.5, 0.7.9, and 0.6.6, as well as various Red Hat and Fedora products. This flaw allows an attacker to cause a denial of service by sending specially crafted TPM2 command packets that trigger an out-of-bounds write when the TPM2's volatile state is written. The attack requires user interaction (UI:R) but can be executed over the network (AV:N). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.6.0, < 0.6.6CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
>= 0.7.0, < 0.7.9CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
>= 0.8.0, < 0.8.5CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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