An update for nss 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

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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: nss security and bug fix update
Advisory ID:       RHSA-2021:0538-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0538
Issue date:        2021-02-16
CVE Names:         CVE-2020-6829 CVE-2020-12400 CVE-2020-12403 
====================================================================
1. Summary:

An update for nss 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

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

Security Fix(es):

* nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)

* nss: P-384 and P-521 implementation uses a side-channel vulnerable
modular inversion function (CVE-2020-12400)

* nss: CHACHA20-POLY1305 decryption with undersized tag leads to
out-of-bounds read (CVE-2020-12403)

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):

* Support key wrap/unwrap with RSA-OAEP (BZ#1896431)

* 1536bit group from RFC3526 is allowed in FIPS mode when in policy DH-MIN
is set to be lower than 1536 (BZ#1896432)

* when NSS_SDB_USE_CACHE not set, after curl access https, dentry increase
but never released - consider alternative algorithm for benchmarking ACCESS
call in sdb_measureAccess [rhel-8] (BZ#1896933)

* Policy should allow overriding library defaults (BZ#1898702)

* KDF-self-tests-induced changes for nss in RHEL 8.4 (BZ#1898953)

* nss: non-blocksize requests to IKEv1 KDF returns bogus output
(BZ#1904408)

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1826187 - CVE-2020-6829 nss: Side channel attack on ECDSA signature generation
1853983 - CVE-2020-12400 nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function
1868931 - CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read
1896431 - Support key wrap/unwrap with RSA-OAEP [rhel-8.3.0.z]
1896432 - 1536bit group from RFC3526 is allowed in FIPS mode when in policy DH-MIN is set to be lower than 1536 [rhel-8.3.0.z]
1896933 - when NSS_SDB_USE_CACHE not set, after curl access https, dentry increase but never released - consider alternative algorithm for benchmarking ACCESS call in sdb_measureAccess [rhel-8] [rhel-8.3.0.z]
1898953 - KDF-self-tests-induced changes for nss in RHEL 8.4 [rhel-8.3.0.z]

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
nss-3.53.1-17.el8_3.src.rpm

aarch64:
nss-3.53.1-17.el8_3.aarch64.rpm
nss-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-debugsource-3.53.1-17.el8_3.aarch64.rpm
nss-devel-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-devel-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-freebl-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-freebl-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-softokn-freebl-devel-3.53.1-17.el8_3.aarch64.rpm
nss-sysinit-3.53.1-17.el8_3.aarch64.rpm
nss-sysinit-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-tools-3.53.1-17.el8_3.aarch64.rpm
nss-tools-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-util-3.53.1-17.el8_3.aarch64.rpm
nss-util-debuginfo-3.53.1-17.el8_3.aarch64.rpm
nss-util-devel-3.53.1-17.el8_3.aarch64.rpm

ppc64le:
nss-3.53.1-17.el8_3.ppc64le.rpm
nss-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-debugsource-3.53.1-17.el8_3.ppc64le.rpm
nss-devel-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-devel-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-freebl-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-freebl-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-softokn-freebl-devel-3.53.1-17.el8_3.ppc64le.rpm
nss-sysinit-3.53.1-17.el8_3.ppc64le.rpm
nss-sysinit-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-tools-3.53.1-17.el8_3.ppc64le.rpm
nss-tools-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-util-3.53.1-17.el8_3.ppc64le.rpm
nss-util-debuginfo-3.53.1-17.el8_3.ppc64le.rpm
nss-util-devel-3.53.1-17.el8_3.ppc64le.rpm

s390x:
nss-3.53.1-17.el8_3.s390x.rpm
nss-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-debugsource-3.53.1-17.el8_3.s390x.rpm
nss-devel-3.53.1-17.el8_3.s390x.rpm
nss-softokn-3.53.1-17.el8_3.s390x.rpm
nss-softokn-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-softokn-devel-3.53.1-17.el8_3.s390x.rpm
nss-softokn-freebl-3.53.1-17.el8_3.s390x.rpm
nss-softokn-freebl-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-softokn-freebl-devel-3.53.1-17.el8_3.s390x.rpm
nss-sysinit-3.53.1-17.el8_3.s390x.rpm
nss-sysinit-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-tools-3.53.1-17.el8_3.s390x.rpm
nss-tools-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-util-3.53.1-17.el8_3.s390x.rpm
nss-util-debuginfo-3.53.1-17.el8_3.s390x.rpm
nss-util-devel-3.53.1-17.el8_3.s390x.rpm

x86_64:
nss-3.53.1-17.el8_3.i686.rpm
nss-3.53.1-17.el8_3.x86_64.rpm
nss-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-debugsource-3.53.1-17.el8_3.i686.rpm
nss-debugsource-3.53.1-17.el8_3.x86_64.rpm
nss-devel-3.53.1-17.el8_3.i686.rpm
nss-devel-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-3.53.1-17.el8_3.i686.rpm
nss-softokn-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-softokn-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-devel-3.53.1-17.el8_3.i686.rpm
nss-softokn-devel-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-freebl-3.53.1-17.el8_3.i686.rpm
nss-softokn-freebl-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-freebl-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-softokn-freebl-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-softokn-freebl-devel-3.53.1-17.el8_3.i686.rpm
nss-softokn-freebl-devel-3.53.1-17.el8_3.x86_64.rpm
nss-sysinit-3.53.1-17.el8_3.x86_64.rpm
nss-sysinit-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-sysinit-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-tools-3.53.1-17.el8_3.x86_64.rpm
nss-tools-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-tools-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-util-3.53.1-17.el8_3.i686.rpm
nss-util-3.53.1-17.el8_3.x86_64.rpm
nss-util-debuginfo-3.53.1-17.el8_3.i686.rpm
nss-util-debuginfo-3.53.1-17.el8_3.x86_64.rpm
nss-util-devel-3.53.1-17.el8_3.i686.rpm
nss-util-devel-3.53.1-17.el8_3.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key

7. References:

https://access.redhat.com/security/cve/CVE-2020-6829
https://access.redhat.com/security/cve/CVE-2020-12400
https://access.redhat.com/security/cve/CVE-2020-12403
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2021 Red Hat, Inc.
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