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Test ID:1.3.6.1.4.1.25623.1.0.871563
Category:Red Hat Local Security Checks
Title:RedHat Update for openssl RHSA-2016:0302-01
Summary:The remote host is missing an update for the 'openssl'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'openssl'
package(s) announced via the referenced advisory.

Vulnerability Insight:
OpenSSL is a toolkit that implements
the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols,
as well as a full-strength, general purpose cryptography library.

A padding oracle flaw was found in the Secure Sockets Layer version 2.0
(SSLv2) protocol. An attacker can potentially use this flaw to decrypt
RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol
version, allowing them to decrypt such connections. This cross-protocol
attack is publicly referred to as DROWN. (CVE-2016-0800)

Note: This issue was addressed by disabling the SSLv2 protocol by default
when using the 'SSLv23' connection methods, and removing support for weak
SSLv2 cipher suites. It is possible to re-enable the SSLv2 protocol in the
'SSLv23' connection methods by default by setting the OPENSSL_ENABLE_SSL2
environment variable before starting an application that needs to have
SSLv2 enabled. For more information, refer to the knowledge base article
linked to in the References section.

A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2
ciphers that have been disabled on the server. This could result in weak
SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to
man-in-the-middle attacks. (CVE-2015-3197)

An integer overflow flaw, leading to a NULL pointer dereference or a
heap-based memory corruption, was found in the way some BIGNUM functions of
OpenSSL were implemented. Applications that use these functions with large
untrusted input could crash or, potentially, execute arbitrary code.
(CVE-2016-0797)

Red Hat would like to thank the OpenSSL project for reporting these issues.
Upstream acknowledges Nimrod Aviram and Sebastian Schinzel as the original
reporters of CVE-2016-0800 and CVE-2015-3197 and Guido Vranken as the
original reporter of CVE-2016-0797.

All openssl users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. For the update to take
effect, all services linked to the OpenSSL library must be restarted, or
the system rebooted.

Affected Software/OS:
openssl on Red Hat Enterprise Linux (v. 5 server)

Solution:
Please Install the Updated Packages.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-3197
BugTraq ID: 82237
http://www.securityfocus.com/bid/82237
BugTraq ID: 91787
http://www.securityfocus.com/bid/91787
CERT/CC vulnerability note: VU#257823
https://www.kb.cert.org/vuls/id/257823
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.html
FreeBSD Security Advisory: FreeBSD-SA-16:12
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:11.openssl.asc
https://security.gentoo.org/glsa/201601-05
http://www.securitytracker.com/id/1034849
SuSE Security Announcement: SUSE-SU-2016:0617 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html
SuSE Security Announcement: SUSE-SU-2016:0620 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html
SuSE Security Announcement: SUSE-SU-2016:0621 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html
SuSE Security Announcement: SUSE-SU-2016:0624 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html
SuSE Security Announcement: SUSE-SU-2016:0631 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html
SuSE Security Announcement: SUSE-SU-2016:0641 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html
SuSE Security Announcement: SUSE-SU-2016:0678 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html
SuSE Security Announcement: SUSE-SU-2016:1057 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html
SuSE Security Announcement: openSUSE-SU-2016:0628 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html
SuSE Security Announcement: openSUSE-SU-2016:0637 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
SuSE Security Announcement: openSUSE-SU-2016:0638 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html
SuSE Security Announcement: openSUSE-SU-2016:0640 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
SuSE Security Announcement: openSUSE-SU-2016:0720 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html
SuSE Security Announcement: openSUSE-SU-2016:1239 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html
SuSE Security Announcement: openSUSE-SU-2016:1241 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html
Common Vulnerability Exposure (CVE) ID: CVE-2016-0797
BugTraq ID: 83763
http://www.securityfocus.com/bid/83763
Cisco Security Advisory: 20160302 Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: March 2016
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl
Debian Security Information: DSA-3500 (Google Search)
http://www.debian.org/security/2016/dsa-3500
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc
https://security.gentoo.org/glsa/201603-15
HPdes Security Advisory: HPSBGN03563
http://marc.info/?l=bugtraq&m=145889460330120&w=2
RedHat Security Advisories: RHSA-2016:2957
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.securitytracker.com/id/1035133
SuSE Security Announcement: openSUSE-SU-2016:0627 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html
SuSE Security Announcement: openSUSE-SU-2016:1566 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html
http://www.ubuntu.com/usn/USN-2914-1
Common Vulnerability Exposure (CVE) ID: CVE-2016-0800
BugTraq ID: 83733
http://www.securityfocus.com/bid/83733
CERT/CC vulnerability note: VU#583776
https://www.kb.cert.org/vuls/id/583776
HPdes Security Advisory: HPSBGN03569
http://marc.info/?l=bugtraq&m=145983526810210&w=2
HPdes Security Advisory: HPSBMU03573
http://marc.info/?l=bugtraq&m=146133665209436&w=2
HPdes Security Advisory: HPSBMU03575
http://marc.info/?l=bugtraq&m=146108058503441&w=2
https://drownattack.com
https://ics-cert.us-cert.gov/advisories/ICSA-16-103-03
RedHat Security Advisories: RHSA-2016:1519
http://rhn.redhat.com/errata/RHSA-2016-1519.html
CopyrightCopyright (C) 2016 Greenbone Networks GmbH

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