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Red Hat Enterprise Linux 7: RHSA-2016:2582 Moderate: Nettle Security Fix

Calendar Nov 03, 2016 • User Avatar LinuxSecurity Advisories
3 - 6 min read
Redhat Large Esm H500
Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux moderate severity security patch cache attack nettle
An update for nettle 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 
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: nettle security and bug fix update
Advisory ID:       RHSA-2016:2582-02
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:2582.html
Issue date:        2016-11-03
CVE Names:         CVE-2015-8803 CVE-2015-8804 CVE-2015-8805 
                   CVE-2016-6489 
====================================================================
1. Summary:

An update for nettle 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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

Nettle is a cryptographic library that is designed to fit easily in almost
any context: In cryptographic toolkits for object-oriented languages, such
as C++, Python, or Pike, in applications like lsh or GnuPG, or even in
kernel space.

Security Fix(es):

* Multiple flaws were found in the way nettle implemented elliptic curve
scalar multiplication. These flaws could potentially introduce
cryptographic weaknesses into nettle's functionality. (CVE-2015-8803,
CVE-2015-8804, CVE-2015-8805)

* It was found that nettle's RSA and DSA decryption code was vulnerable to
cache-related side channel attacks. An attacker could use this flaw to
recover the private key from a co-located virtual-machine instance.
(CVE-2016-6489)

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 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/):

1252936 - nettle: sha3 implementation does not conform to the published version
1304303 - CVE-2015-8803 nettle: secp256 calculation bug
1304379 - CVE-2015-8804 nettle: miscalculations on secp384 curve
1304382 - CVE-2015-8805 nettle: secp256 calculation bug
1362016 - CVE-2016-6489 nettle: RSA/DSA code is vulnerable to cache-timing related attacks

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
nettle-2.7.1-8.el7.src.rpm

x86_64:
nettle-2.7.1-8.el7.i686.rpm
nettle-2.7.1-8.el7.x86_64.rpm
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm

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

x86_64:
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
nettle-devel-2.7.1-8.el7.i686.rpm
nettle-devel-2.7.1-8.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
nettle-2.7.1-8.el7.src.rpm

x86_64:
nettle-2.7.1-8.el7.i686.rpm
nettle-2.7.1-8.el7.x86_64.rpm
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm

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

x86_64:
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
nettle-devel-2.7.1-8.el7.i686.rpm
nettle-devel-2.7.1-8.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
nettle-2.7.1-8.el7.src.rpm

aarch64:
nettle-2.7.1-8.el7.aarch64.rpm
nettle-debuginfo-2.7.1-8.el7.aarch64.rpm
nettle-devel-2.7.1-8.el7.aarch64.rpm

ppc64:
nettle-2.7.1-8.el7.ppc.rpm
nettle-2.7.1-8.el7.ppc64.rpm
nettle-debuginfo-2.7.1-8.el7.ppc.rpm
nettle-debuginfo-2.7.1-8.el7.ppc64.rpm
nettle-devel-2.7.1-8.el7.ppc.rpm
nettle-devel-2.7.1-8.el7.ppc64.rpm

ppc64le:
nettle-2.7.1-8.el7.ppc64le.rpm
nettle-debuginfo-2.7.1-8.el7.ppc64le.rpm
nettle-devel-2.7.1-8.el7.ppc64le.rpm

s390x:
nettle-2.7.1-8.el7.s390.rpm
nettle-2.7.1-8.el7.s390x.rpm
nettle-debuginfo-2.7.1-8.el7.s390.rpm
nettle-debuginfo-2.7.1-8.el7.s390x.rpm
nettle-devel-2.7.1-8.el7.s390.rpm
nettle-devel-2.7.1-8.el7.s390x.rpm

x86_64:
nettle-2.7.1-8.el7.i686.rpm
nettle-2.7.1-8.el7.x86_64.rpm
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
nettle-devel-2.7.1-8.el7.i686.rpm
nettle-devel-2.7.1-8.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
nettle-2.7.1-8.el7.src.rpm

x86_64:
nettle-2.7.1-8.el7.i686.rpm
nettle-2.7.1-8.el7.x86_64.rpm
nettle-debuginfo-2.7.1-8.el7.i686.rpm
nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
nettle-devel-2.7.1-8.el7.i686.rpm
nettle-devel-2.7.1-8.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-2015-8803
https://access.redhat.com/security/cve/CVE-2015-8804
https://access.redhat.com/security/cve/CVE-2015-8805
https://access.redhat.com/security/cve/CVE-2016-6489
https://access.redhat.com/security/updates/classification#moderate
https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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Red Hat Enterprise Linux 7: RHSA-2016:2582 Moderate: Nettle Security Fix

red hat
Calendar Grey November 3, 2016
Dist Redhat Esm H88
Ubuntu issues a significant update for OpenSSL, tackling various vulnerabilities. Ensure you're aware of essential modifications.
An update for nettle is now available for Red Hat Enterprise Linux 7

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

Summary

Nettle is a cryptographic library that is designed to fit easily in almost any context: In cryptographic toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like lsh or GnuPG, or even in kernel space.
Security Fix(es):
* Multiple flaws were found in the way nettle implemented elliptic curve scalar multiplication. These flaws could potentially introduce cryptographic weaknesses into nettle's functionality. (CVE-2015-8803, CVE-2015-8804, CVE-2015-8805)
* It was found that nettle's RSA and DSA decryption code was vulnerable to cache-related side channel attacks. An attacker could use this flaw to recover the private key from a co-located virtual-machine instance. (CVE-2016-6489)
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux moderate severity security patch cache attack nettle

References

https://access.redhat.com/security/cve/CVE-2015-8803 https://access.redhat.com/security/cve/CVE-2015-8804 https://access.redhat.com/security/cve/CVE-2015-8805 https://access.redhat.com/security/cve/CVE-2016-6489 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: nettle-2.7.1-8.el7.src.rpm
x86_64: nettle-2.7.1-8.el7.i686.rpm nettle-2.7.1-8.el7.x86_64.rpm nettle-debuginfo-2.7.1-8.el7.i686.rpm nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: nettle-debuginfo-2.7.1-8.el7.i686.rpm nettle-debuginfo-2.7.1-8.el7.x86_64.rpm nettle-devel-2.7.1-8.el7.i686.rpm nettle-devel-2.7.1-8.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: nettle-2.7.1-8.el7.src.rpm
x86_64: nettle-2.7.1-8.el7.i686.rpm nettle-2.7.1-8.el7.x86_64.rpm nettle-debuginfo-2.7.1-8.el7.i686.rpm nettle-debuginfo-2.7.1-8.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: nettle-debuginfo-2.7.1-8.el7.i686.rpm nettle-debuginfo-2.7.1-8.el7.x86_64.rpm nettle-devel-2.7.1-8.el7.i686.rpm nettle-devel-2.7.1-8.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: nettle-2.7.1-8.el7.src.rpm
aarch64: nettle-2.7.1-8.el7.aarch64.rpm nettle-debuginfo-2.7.1-8.el7.aarch64.rpm nettle-devel-2.7.1-8.el7.aarch64.rpm
ppc64: nettle-2.7.1-8.el7.ppc.rpm nettle-2.7.1-8.el7.ppc64.rpm nettle-debuginfo-2.7.1-8.el7.ppc.rpm nettle-debuginfo-2.7.1-8.el7.ppc64.rpm nettle-devel-2.7.1-8.el7.ppc.rpm nettle-devel-2.7.1-8.el7.ppc64.rpm
ppc64le: nettle-2.7.1-8.el7.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:2582-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2582.html
Issue date: 2016-11-03

Topic

An update for nettle is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux moderate severity security patch cache attack nettle

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1252936 - nettle: sha3 implementation does not conform to the published version

1304303 - CVE-2015-8803 nettle: secp256 calculation bug

1304379 - CVE-2015-8804 nettle: miscalculations on secp384 curve

1304382 - CVE-2015-8805 nettle: secp256 calculation bug

1362016 - CVE-2016-6489 nettle: RSA/DSA code is vulnerable to cache-timing related attacks

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