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CVE-2019-11727

CVE-2019-11727

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 1.8%
exploitation probability
1.8%top 22% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Mozilla · Firefox
References
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.htmlhttps://access.redhat.com/errata/RHSA-2019:1951https://bugzilla.mozilla.org/show_bug.cgi?id=1552208https://security.gentoo.org/glsa/201908-12https://www.mozilla.org/security/advisories/mfsa2019-21/