CVE-2019-11727

EPSS 1.7%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.7%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

23 Jul 2019Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

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References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html https://access.redhat.com/errata/RHSA-2019:1951 https://bugzilla.mozilla.org/show_bug.cgi?id=1552208 https://security.gentoo.org/glsa/201908-12 https://www.mozilla.org/security/advisories/mfsa2019-21/