The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:0752 advisory.

    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 pointer use flaw was found in OpenSSL's ASN1_TYPE_cmp()     function. A remote attacker could crash a TLS/SSL client or server using     OpenSSL via a specially crafted X.509 certificate when the     attacker-supplied certificate was verified by the application.
    (CVE-2015-0286)

    An integer underflow flaw, leading to a buffer overflow, was found in the     way OpenSSL decoded malformed Base64-encoded inputs. An attacker able to     make an application using OpenSSL decode a specially crafted Base64-encoded     input (such as a PEM file) could use this flaw to cause the application to     crash. Note: this flaw is not exploitable via the TLS/SSL protocol because     the data being transferred is not Base64-encoded. (CVE-2015-0292)

    A denial of service flaw was found in the way OpenSSL handled SSLv2     handshake messages. A remote attacker could use this flaw to cause a     TLS/SSL server using OpenSSL to exit on a failed assertion if it had both     the SSLv2 protocol and EXPORT-grade cipher suites enabled. (CVE-2015-0293)

    A use-after-free flaw was found in the way OpenSSL imported malformed     Elliptic Curve private keys. A specially crafted key file could cause an     application using OpenSSL to crash when imported. (CVE-2015-0209)

    An out-of-bounds write flaw was found in the way OpenSSL reused certain     ASN.1 structures. A remote attacker could possibly use a specially crafted     ASN.1 structure that, when parsed by an application, would cause that     application to crash. (CVE-2015-0287)

    A NULL pointer dereference flaw was found in OpenSSL's X.509 certificate     handling implementation. A specially crafted X.509 certificate could cause     an application using OpenSSL to crash if the application attempted to     convert the certificate to a certificate request. (CVE-2015-0288)

    A NULL pointer dereference was found in the way OpenSSL handled certain     PKCS#7 inputs. An attacker able to make an application using OpenSSL     verify, decrypt, or parse a specially crafted PKCS#7 input could cause that     application to crash. TLS/SSL clients and servers using OpenSSL were not     affected by this flaw. (CVE-2015-0289)

    Red Hat would like to thank the OpenSSL project for reporting     CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0292,     and CVE-2015-0293. Upstream acknowledges Stephen Henson of the OpenSSL     development team as the original reporter of CVE-2015-0286, Emilia Ksper     of the OpenSSL development team as the original reporter of CVE-2015-0287,     Brian Carpenter as the original reporter of CVE-2015-0288, Michal Zalewski     of Google as the original reporter of CVE-2015-0289, Robert Dugal and David     Ramos as the original reporters of CVE-2015-0292, and Sean Burford of     Google and Emilia Ksper of the OpenSSL development team as the original     reporters of CVE-2015-0293.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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RHEL 6 : openssl (RHSA-2015:0752)

medium Nessus Plugin ID 82494

Version 1.23