Missing Encryption of Sensitive Data Affecting wolfssl package, versions <4.2.0+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-DEBIAN11-WOLFSSL-537681
  • published12 Dec 2019
  • disclosed11 Dec 2019

Introduced: 11 Dec 2019

CVE-2019-14317  (opens in a new tab)
CWE-311  (opens in a new tab)

How to fix?

Upgrade Debian:11 wolfssl to version 4.2.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote attacker to compute the long term private key from several hundred DSA signatures via a lattice attack. The issue occurs because dsa.c fixes two bits of the generated nonces.

CVSS Scores

version 3.1