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CentOS 6 / 7 : openssl (CESA-2015:1115)

high Nessus Plugin ID 84199

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated openssl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

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.

An invalid free flaw was found in the way OpenSSL handled certain DTLS handshake messages. A malicious DTLS client or server could cause a DTLS server or client using OpenSSL to crash or, potentially, execute arbitrary code. (CVE-2014-8176)

A flaw was found in the way the OpenSSL packages shipped with Red Hat Enterprise Linux 6 and 7 performed locking in the ssleay_rand_bytes() function. This issue could possibly cause a multi-threaded application using OpenSSL to perform an out-of-bounds read and crash.
(CVE-2015-3216)

An out-of-bounds read flaw was found in the X509_cmp_time() function of OpenSSL. A specially crafted X.509 certificate or a Certificate Revocation List (CRL) could possibly cause a TLS/SSL server or client using OpenSSL to crash. (CVE-2015-1789)

A race condition was found in the session handling code of OpenSSL.
This issue could possibly cause a multi-threaded TLS/SSL client using OpenSSL to double free session ticket data and crash. (CVE-2015-1791)

A flaw was found in the way OpenSSL handled Cryptographic Message Syntax (CMS) messages. A CMS message with an unknown hash function identifier could cause an application using OpenSSL to enter an infinite loop. (CVE-2015-1792)

A NULL pointer dereference was found in the way OpenSSL handled certain PKCS#7 inputs. A specially crafted PKCS#7 input with missing EncryptedContent data could cause an application using OpenSSL to crash. (CVE-2015-1790)

Red Hat would like to thank the OpenSSL project for reporting CVE-2014-8176, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791 and CVE-2015-1792 flaws. Upstream acknowledges Praveen Kariyanahalli and Ivan Fratric as the original reporters of CVE-2014-8176, Robert Swiecki and Hanno Bock as the original reporters of CVE-2015-1789, Michal Zalewski as the original reporter of CVE-2015-1790, Emilia Kasper as the original report of CVE-2015-1791 and Johannes Bauer as the original reporter of CVE-2015-1792.

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.

Solution

Update the affected openssl packages.

See Also

http://www.nessus.org/u?045df2f1

http://www.nessus.org/u?30c569d9

Plugin Details

Severity: High

ID: 84199

File Name: centos_RHSA-2015-1115.nasl

Version: 2.18

Type: local

Agent: unix

Published: 6/16/2015

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2014-8176

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssl, p-cpe:/a:centos:centos:openssl-devel, p-cpe:/a:centos:centos:openssl-libs, p-cpe:/a:centos:centos:openssl-perl, p-cpe:/a:centos:centos:openssl-static, cpe:/o:centos:centos:6, cpe:/o:centos:centos:7

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2015

Vulnerability Publication Date: 6/12/2015

Reference Information

CVE: CVE-2014-8176, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791, CVE-2015-1792, CVE-2015-3216

BID: 75154, 75156, 75157, 75159, 75161

RHSA: 2015:1115