Use of a Broken or Risky Cryptographic Algorithm Affecting virt:av/libtpms package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4438133
  • published16 Jun 2022
  • disclosed1 Mar 2021

Introduced: 1 Mar 2021

CVE-2021-3446  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 virt:av/libtpms.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:av/libtpms package and not the virt:av/libtpms package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1