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AUSCERT External Security Bulletin Redistribution
ESB-2021.0571
nss security and bug fix update
17 February 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: nss
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote with User Interaction
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12403 CVE-2020-12400 CVE-2020-6829
Reference: ESB-2020.3631
ESB-2020.3535
ESB-2020.3355
ESB-2020.3352
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:0538
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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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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