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Improper Certificate Validation Affecting nss package, versions *

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.61% (79th percentile)
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NVD
5.3 medium
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SUSE
5 medium
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Red Hat
3.4 low

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  • Snyk ID SNYK-DEBIAN9-NSS-452771
  • published 24 Jul 2019
  • disclosed 23 Jul 2019
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Introduced: 23 Jul 2019

CVE-2019-11727 Open this link in a new tab
CWE-295 Open this link in a new tab

How to fix?

There is no fixed version for Debian:9 nss.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Debian. See How to fix? for Debian:9 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.