Input validation error in Mozilla NSS - CVE-2019-17007

Vulnerability identifier: #VU23467

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-17007

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the collect_certs() function in /lib/pkcs7/certread.c in Mozilla NSS library. A remote attacker can supply a specially crafted certificate to the application and perform a denial of service attack.

Mozilla NSS
nss (Ubuntu package)
nss-softokn (Red Hat package)
nss (Red Hat package)
nss (Debian package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
nss
nss-devel
nss-debuginfo
nss-debugsource
nss-softokn
nss-softokn-devel
nss-util
nss-util-devel
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
openEuler
RUGGEDCOM ROS
Data Computing Appliance (DCA)

Install updates from vendor's website.

Mozilla NSS - addressed in versions 3.44.3, 3.47.1
nss (Ubuntu package) - addressed in versions 2:3.28.4-0ubuntu0.16.04.9, 2:3.35-2ubuntu2.6, 2:3.42-1ubuntu2.4
nss-softokn (Red Hat package) - update to 3.36.0-7.el7_6
nss (Red Hat package) - update to 3.36.0-9.el7_6
nss (Debian package) - update to 2:3.42.1-1+deb10u2
RUGGEDCOM ROS - update to 2.14.0
nss - update to 3.54.0-2
nss-devel - update to 3.54.0-2
nss-debuginfo - update to 3.54.0-2
nss-debugsource - update to 3.54.0-2
nss-softokn - update to 3.54.0-2
nss-softokn-devel - update to 3.54.0-2
nss-util - update to 3.54.0-2
nss-util-devel - update to 3.54.0-2
Data Computing Appliance (DCA) - update to 4.3.0.0

• https://bugs.chromium.org/p/project-zero/issues/detail?id=1798

• Multiple vulnerabilities in Mozilla NSS
• Ubuntu update for NSS
• Debian update for nss
• Multiple vulnerabilities in Siemens RUGGEDCOM ROX IIB
• Red Hat Enterprise Linux 7.6 update for nss and nss-softokn
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• openEuler 20.03 LTS update for nss