Use of a Broken or Risky Cryptographic Algorithm Affecting nss package, versions <0:3.44.0-7.el8_0


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.65% (80th percentile)

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  • Snyk ID SNYK-RHEL8-NSS-3442111
  • published 26 Jul 2021
  • disclosed 9 Jul 2019

How to fix?

Upgrade RHEL:8 nss to version 0:3.44.0-7.el8_0 or higher.
This issue was patched in RHSA-2019:1951.

NVD Description

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

A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.