PRIOn knowledge basePRION:CVE-2019-11727Design/Logic Flaw
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.
References
lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html
access.redhat.com/errata/RHSA-2019:1951
bugzilla.mozilla.org/show_bug.cgi?id=1552208
security.gentoo.org/glsa/201908-12
www.mozilla.org/security/advisories/mfsa2019-21/
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