CVE-2021-3623 is an out-of-bounds access vulnerability in libtpms, affecting various Fedora and Red Hat Enterprise Linux products. This flaw can be triggered by specially crafted TPM 2 command packets containing illegal values, leading to an out-of-bounds read or write when the TPM 2's volatile state is handled. With a CVSS score of 6.1 (Medium), the vulnerability has a local attack vector, low attack complexity, and its primary impact is on system availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.6.5CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
>= 0.7.0, < 0.7.8CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
>= 0.8.0, < 0.8.4CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.