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Red Hat Security Advisory

Synopsis:          Moderate: nss-softokn security update
Advisory ID:       RHSA-2021:1026-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:1026
Issue date:        2021-03-30
CVE Names:         CVE-2019-11756 CVE-2019-17006 CVE-2020-12403
====================================================================
1. Summary:

An update for nss-softokn is now available for Red Hat Enterprise Linux 7.7
Extended Update Support.

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 ComputeNode EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64

3. Description:

The nss-softokn package provides the Network Security Services Softoken
Cryptographic Module.

Security Fix(es):

* nss: Use-after-free in sftk_FreeSession due to improper refcounting
(CVE-2019-11756)

* nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)

* 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.

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

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

1774835 - CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting
1775916 - CVE-2019-17006 nss: Check length of inputs for cryptographic primitives
1868931 - CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read

6. Package List:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):

Source:
nss-softokn-3.44.0-9.el7_7.src.rpm

x86_64:
nss-softokn-3.44.0-9.el7_7.i686.rpm
nss-softokn-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.i686.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-freebl-3.44.0-9.el7_7.i686.rpm
nss-softokn-freebl-3.44.0-9.el7_7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):

x86_64:
nss-softokn-debuginfo-3.44.0-9.el7_7.i686.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-devel-3.44.0-9.el7_7.i686.rpm
nss-softokn-devel-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.i686.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.7):

Source:
nss-softokn-3.44.0-9.el7_7.src.rpm

ppc64:
nss-softokn-3.44.0-9.el7_7.ppc.rpm
nss-softokn-3.44.0-9.el7_7.ppc64.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.ppc.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.ppc64.rpm
nss-softokn-devel-3.44.0-9.el7_7.ppc.rpm
nss-softokn-devel-3.44.0-9.el7_7.ppc64.rpm
nss-softokn-freebl-3.44.0-9.el7_7.ppc.rpm
nss-softokn-freebl-3.44.0-9.el7_7.ppc64.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.ppc.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.ppc64.rpm

ppc64le:
nss-softokn-3.44.0-9.el7_7.ppc64le.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.ppc64le.rpm
nss-softokn-devel-3.44.0-9.el7_7.ppc64le.rpm
nss-softokn-freebl-3.44.0-9.el7_7.ppc64le.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.ppc64le.rpm

s390x:
nss-softokn-3.44.0-9.el7_7.s390.rpm
nss-softokn-3.44.0-9.el7_7.s390x.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.s390.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.s390x.rpm
nss-softokn-devel-3.44.0-9.el7_7.s390.rpm
nss-softokn-devel-3.44.0-9.el7_7.s390x.rpm
nss-softokn-freebl-3.44.0-9.el7_7.s390.rpm
nss-softokn-freebl-3.44.0-9.el7_7.s390x.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.s390.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.s390x.rpm

x86_64:
nss-softokn-3.44.0-9.el7_7.i686.rpm
nss-softokn-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.i686.rpm
nss-softokn-debuginfo-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-devel-3.44.0-9.el7_7.i686.rpm
nss-softokn-devel-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-freebl-3.44.0-9.el7_7.i686.rpm
nss-softokn-freebl-3.44.0-9.el7_7.x86_64.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.i686.rpm
nss-softokn-freebl-devel-3.44.0-9.el7_7.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-2019-11756
https://access.redhat.com/security/cve/CVE-2019-17006
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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