RHSA-2021:3572 - Security Advisory

Topic

An update for nss and nspr is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications.

Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities.

The following packages have been upgraded to a later upstream version: nss (3.67.0), nspr (4.32.0). (BZ#1967980)

Security Fix(es):

• nss: TLS 1.3 CCS flood remote DoS Attack (CVE-2020-25648)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• 8025 error code when creating subCAs (BZ#1977412)
• NSS cannot use SQL databases created by specific versions of NSS (BZ#1978443)
• Inconsistent handling of malformed CertificateRequest messages (BZ#1980050)

Enhancement(s):

• [IBM 8.5 FEAT] [P10] POWER10 performance enhancements for cryptography: NSS FreeBL (BZ#1978257)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, applications using NSS (for example, Firefox) must be restarted for this update to take effect. After installing this update, applications using NSPR (for example, Firefox) must be restarted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.8 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.8 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.4 x86_64
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.8 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.4 x86_64

Fixes

• BZ - 1887319 - CVE-2020-25648 nss: TLS 1.3 CCS flood remote DoS Attack
• BZ - 1967980 - Need to rebase to NSS 3.66 for Firefox 91 Release [rhel-8.4.0.z]
• BZ - 1976250 - pkix_Build_GatherCerts() bug causes sporadic libreswan/IKE certificate validation errors [rhel-8.4.0.z]
• BZ - 1976253 - time bomb in nss 3.57.1-17.el8_3, test cert expired [rhel-8.4.0.z]
• BZ - 1976255 - SHA-1 signatures in CertificateVerify are accepted in FIPS mode [rhel-8.4.0.z]
• BZ - 1976257 - Document that modutil creates "sql" database by default, even when "sql:" prefix is not specified [rhel-8.4.0.z]
• BZ - 1976258 - Strict prototype error when trying to compile nss code that includes blapi.h [rhel-8.4.0.z]
• BZ - 1977412 - 8025 error code when creating subCAs [rhel-8.4.0.z]
• BZ - 1978443 - NSS cannot use SQL databases created by specific versions of NSS [rhel-8.4.0.z]
• BZ - 1996774 - Need to rebase to NSPR 4.32 for Firefox 91 Release

CVEs

• CVE-2020-25648

References

• https://access.redhat.com/security/updates/classification/#moderate