Improper Certificate Validation Affecting mozilla package, versions [,68.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.65% (80th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377654
  • published26 Jan 2022
  • disclosed23 Jul 2019
  • creditUnknown

Introduced: 23 Jul 2019

CVE-2019-11727  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade mozilla to version 68.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Certificate Validation. 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.

CVSS Scores

version 3.1