ESB-2017.1876 - [UNIX/Linux][Linux][RedHat] golang: Access privileged data - Remote/unauthenticated 2017-08-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1876
        Moderate: golang security, bug fix, and enhancement update
                               2 August 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           golang
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   Linux variants
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-8932  

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2017:1859

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running golang check for an updated version of the software for 
         their operating system.

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

Synopsis:          Moderate: golang security, bug fix, and enhancement update
Advisory ID:       RHSA-2017:1859-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1859
Issue date:        2017-08-01
CVE Names:         CVE-2017-8932 
=====================================================================

1. Summary:

An update for golang is now available for Red Hat Enterprise Linux 7.

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 Server Optional (v. 7) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

The golang packages provide the Go programming language compiler.

The following packages have been upgraded to a later upstream version:
golang (1.8.3). (BZ#1414500)

Security Fix(es):

* A carry propagation flaw was found in the implementation of the P-256
elliptic curve in golang. An attacker could possibly use this flaw to
extract private keys when static ECDH was used. (CVE-2017-8932)

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.4 Release Notes linked from 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/):

1381593 - runtime: backport 'fix nanotime for macOS Sierra, again' to go 1.6.x
1405587 - build golang for ppc64le and s390x
1444122 - codegen bug for uint64 type on s390x
1452241 - All golang versions prior to 1.9 do not support OIDs that require more than 28 bits
1452616 - golang 1.8 performance regression in net/http affecting kubernetes scale
1455189 - CVE-2017-8932 golang: Elliptic curves carry propagation issue in x86-64 P-256

6. Package List:

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
golang-1.8.3-1.el7.src.rpm

aarch64:
golang-1.8.3-1.el7.aarch64.rpm
golang-bin-1.8.3-1.el7.aarch64.rpm

noarch:
golang-docs-1.8.3-1.el7.noarch.rpm
golang-misc-1.8.3-1.el7.noarch.rpm
golang-src-1.8.3-1.el7.noarch.rpm
golang-tests-1.8.3-1.el7.noarch.rpm

ppc64le:
golang-1.8.3-1.el7.ppc64le.rpm
golang-bin-1.8.3-1.el7.ppc64le.rpm

s390x:
golang-1.8.3-1.el7.s390x.rpm
golang-bin-1.8.3-1.el7.s390x.rpm

x86_64:
golang-1.8.3-1.el7.x86_64.rpm
golang-bin-1.8.3-1.el7.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-2017-8932
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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