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CVE-2019-11727

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 201908-12
Posted Aug 15, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201908-12 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could result in the arbitrary execution of code. Versions less than 60.8.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2019-11707, CVE-2019-11708, CVE-2019-11709, CVE-2019-11710, CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11714, CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11718, CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11723, CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11728, CVE-2019-11729, CVE-2019-11730, CVE-2019-9811
MD5 | a8e68267ac356665d3881a395692ae9a
Red Hat Security Advisory 2019-1951-01
Posted Jul 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1951-01 - Network Security Services is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Netscape Portable Runtime provides platform independence for non-GUI operating system facilities. Issues addressed include denial of service and null pointer vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2018-18508, CVE-2019-11719, CVE-2019-11727, CVE-2019-11729
MD5 | 149884dabe46ee0cc754a9468c4d2846
Ubuntu Security Notice USN-4060-1
Posted Jul 16, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4060-1 - Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing certain curve25519 private keys. An attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly obtain sensitive information. Hubert Kario discovered that NSS incorrectly handled PKCS#1 v1.5 signatures when using TLSv1.3. An attacker could possibly use this issue to trick NSS into using PKCS#1 v1.5 signatures, contrary to expectations. This issue only applied to Ubuntu 19.04. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2019-11719, CVE-2019-11727, CVE-2019-11729
MD5 | acf4fb5b8ce93a4b59ab3ef1e3ef1c1b
Ubuntu Security Notice USN-4054-1
Posted Jul 12, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4054-1 - A sandbox escape was discovered in Firefox. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass same origin restrictions, conduct cross-site scripting attacks, conduct cross-site request forgery attacks, spoof origin attributes, spoof the addressbar contents, bypass safebrowsing protections, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, spoof, xss, csrf
systems | linux, ubuntu
advisories | CVE-2019-11709, CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11729, CVE-2019-11730, CVE-2019-9811
MD5 | 8ea6959ed7ac020d5ddd786544d68258
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