Sigurnosni nedostaci programskog paketa nss-softokn

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by - 8. travnja 2020.0

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

Synopsis: Important: nss-softokn security update
Advisory ID: RHSA-2020:1345-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1345
Issue date: 2020-04-07
CVE Names: CVE-2018-0495 CVE-2019-11745
=====================================================================

1. Summary:

An update for nss-softokn is now available for Red Hat Enterprise Linux 7.4
Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
Solutions.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 Server AUS (v. 7.4) – x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) – ppc64le, x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) – x86_64

3. Description:

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

Security Fix(es):

* nss: Out-of-bounds write when passing an output buffer smaller than the
block size to NSC_EncryptUpdate (CVE-2019-11745)

* ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries
(CVE-2018-0495)

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/):

1591163 – CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries
1774831 – CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
nss-softokn-3.28.3-9.el7_4.src.rpm

x86_64:
nss-softokn-3.28.3-9.el7_4.i686.rpm
nss-softokn-3.28.3-9.el7_4.x86_64.rpm
nss-softokn-debuginfo-3.28.3-9.el7_4.i686.rpm
nss-softokn-debuginfo-3.28.3-9.el7_4.x86_64.rpm
nss-softokn-devel-3.28.3-9.el7_4.i686.rpm
nss-softokn-devel-3.28.3-9.el7_4.x86_64.rpm
nss-softokn-freebl-3.28.3-9.el7_4.i686.rpm
nss-softokn-freebl-3.28.3-9.el7_4.x86_64.rpm
nss-softokn-freebl-devel-3.28.3-9.el7_4.i686.rpm
nss-softokn-freebl-devel-3.28.3-9.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.4):

Source:
nss-softokn-3.28.3-9.el7_4.src.rpm

ppc64le:
nss-softokn-3.28.3-9.el7_4.ppc64le.rpm
nss-softokn-debuginfo-3.28.3-9.el7_4.ppc64le.rpm
nss-softokn-devel-3.28.3-9.el7_4.ppc64le.rpm
nss-softokn-freebl-3.28.3-9.el7_4.ppc64le.rpm
nss-softokn-freebl-devel-3.28.3-9.el7_4.ppc64le.rpm

Red Hat Enterprise Linux Server TUS (v. 7.4):

Source:
nss-softokn-3.28.3-9.el7_4.src.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-2018-0495
https://access.redhat.com/security/cve/CVE-2019-11745
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

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