CVE-2021-3446 describes a flaw in libtpms versions prior to 0.8.2, specifically impacting its integration with OpenSSL. This vulnerability, affecting products like Red Hat Enterprise Linux and Fedora, involves the incorrect return of an initial Initialization Vector (IV) instead of the last IV for certain symmetric ciphers, weakening subsequent encryption and decryption. With a CVSS score of 5.5 (Medium), it poses a significant threat to data confidentiality, requiring local access and low privileges to exploit. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.8.2CPE matchmatch criteria | cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.