Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2019-11727: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Red Hat: CVE-2019-11727: CVE-2019-11727 nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
07/23/2019
Created
07/31/2019
Added
07/31/2019
Modified
12/15/2023

Description

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.

Solution(s)

  • redhat-upgrade-nspr
  • redhat-upgrade-nspr-debuginfo
  • redhat-upgrade-nspr-debugsource
  • redhat-upgrade-nspr-devel
  • redhat-upgrade-nss
  • redhat-upgrade-nss-debuginfo
  • redhat-upgrade-nss-debugsource
  • redhat-upgrade-nss-devel
  • redhat-upgrade-nss-pkcs11-devel
  • redhat-upgrade-nss-softokn
  • redhat-upgrade-nss-softokn-debuginfo
  • redhat-upgrade-nss-softokn-devel
  • redhat-upgrade-nss-softokn-freebl
  • redhat-upgrade-nss-softokn-freebl-debuginfo
  • redhat-upgrade-nss-softokn-freebl-devel
  • redhat-upgrade-nss-sysinit
  • redhat-upgrade-nss-sysinit-debuginfo
  • redhat-upgrade-nss-tools
  • redhat-upgrade-nss-tools-debuginfo
  • redhat-upgrade-nss-util
  • redhat-upgrade-nss-util-debuginfo
  • redhat-upgrade-nss-util-devel

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;