CVE-2021-3446
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-3446
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-3446.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 0.8.2-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 0.8.2-1 |
| debian | forky | fixed | 0.8.2-1 |
| debian | sid | fixed | 0.8.2-1 |
| debian | trixie | fixed | 0.8.2-1 |
References
Verify integrity in audit chain (admin only). AS-IS.