The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2016-460:03 advisory.

    The OpenSSL toolkit provides support for secure communications between     machines. OpenSSL includes a certificate management tool and shared     libraries which provide various cryptographic algorithms and     protocols.
    Security issues fixed with this release:
    CVE-2016-0799     The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before     1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths,     which allows remote attackers to cause a denial of service (overflow     and out-of-bounds read) or possibly have unspecified other impact via     a long string, as demonstrated by a large amount of ASN.1 data, a     different vulnerability than CVE-2016-2842.
    CVE-2016-2105     Integer overflow in the EVP_EncodeUpdate function in     crypto/evp/encode.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h     allows remote attackers to cause a denial of service (heap memory     corruption) via a large amount of binary data.
    CVE-2016-2106     Integer overflow in the EVP_EncryptUpdate function in     crypto/evp/evp_enc.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h     allows remote attackers to cause a denial of service (heap memory     corruption) via a large amount of data.
    CVE-2016-2107     The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before     1.0.2h does not consider memory allocation during a certain padding     check, which allows remote attackers to obtain sensitive cleartext     information via a padding-oracle attack against an AES CBC session,     NOTE: this vulnerability exists because of an incorrect fix for     CVE-2013-0169.
    CVE-2016-2108     The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before     1.0.2c allows remote attackers to execute arbitrary code or cause a     denial of service (buffer underflow and memory corruption) via an ANY     field in crafted serialized data, aka the negative zero issue.
    CVE-2016-2109     The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1     BIO implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h     allows remote attackers to cause a denial of service (memory     consumption) via a short invalid encoding.
    CVE-2016-2842     The doapr_outch function in crypto/bio/b_print.c in OpenSSL 1.0.1     before 1.0.1s and 1.0.2 before 1.0.2g does not verify that a certain     memory allocation succeeds, which allows remote attackers to cause a     denial of service (out-of-bounds write or memory consumption) or     possibly have unspecified other impact via a long string, as     demonstrated by a large amount of ASN.1 data, a different     vulnerability than CVE-2016-0799.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

A vulnerability was discovered that allows a man-in-the-middle attacker to use a padding oracle attack to decrypt traffic on a connection using an AES CBC cipher with a server supporting AES-NI.
(CVE-2016-2107 , Important)

It was discovered that the ASN.1 parser can misinterpret a large universal tag as a negative value. If an application deserializes and later reserializes untrusted ASN.1 structures containing an ANY field, an attacker may be able to trigger an out-of-bounds write, which can cause potentially exploitable memory corruption. (CVE-2016-2108 , Important)

An overflow bug was discovered in the EVP_EncodeUpdate() function. An attacker could supply very large amounts of input data to overflow a length check, resulting in heap corruption. (CVE-2016-2105 , Low)

An overflow bug was discovered in the EVP_EncryptUpdate() function. An attacker could supply very large amounts of input data to overflow a length check, resulting in heap corruption. (CVE-2016-2106 , Low)

An issue was discovered in the BIO functions, such as d2i_CMS_bio(), where a short invalid encoding in ASN.1 data can cause allocation of large amounts of memory, potentially resulting in a denial of service.
(CVE-2016-2109 , Low)

This update for openssl fixes the following issues :

  - CVE-2016-2108: Memory corruption in the ASN.1 encoder     (bsc#977617)

  - CVE-2016-2107: Padding oracle in AES-NI CBC MAC check     (bsc#977616)

  - CVE-2016-2105: EVP_EncodeUpdate overflow (bsc#977614)

  - CVE-2016-2106: EVP_EncryptUpdate overflow (bsc#977615)

  - CVE-2016-2109: ASN.1 BIO excessive memory allocation     (bsc#976942)

  - bsc#976943: Buffer overrun in ASN1_parse

  - bsc#977621: Preserve negotiated digests for SNI     (bsc#977621)

  - bsc#958501: Fix openssl enc -non-fips-allow option in     FIPS mode (bsc#958501)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for openssl fixes the following issues :

  - CVE-2016-2108: Memory corruption in the ASN.1 encoder     (boo#977617)

  - CVE-2016-2107: Padding oracle in AES-NI CBC MAC check     (boo#977616)

  - CVE-2016-2105: EVP_EncodeUpdate overflow (boo#977614)

  - CVE-2016-2106: EVP_EncryptUpdate overflow (boo#977615)

  - CVE-2016-2109: ASN.1 BIO excessive memory allocation     (boo#976942)

  - boo#976943: Buffer overrun in ASN1_parse

  - boo#977621: Preserve digests for SNI 

  - boo#958501: Fix openssl enc -non-fips-allow option in     FIPS mode

Security fix for CVE-2016-2108, CVE-2016-2107, CVE-2016-2105, CVE-2016-2106

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for openssl fixes the following issues :

  - CVE-2016-2105: EVP_EncodeUpdate overflow (bsc#977614)

  - CVE-2016-2106: EVP_EncryptUpdate overflow (bsc#977615)

  - CVE-2016-2107: Padding oracle in AES-NI CBC MAC check     (bsc#977616)

  - CVE-2016-2108: Memory corruption in the ASN.1 encoder     (bsc#977617)

  - CVE-2016-2109: ASN.1 BIO excessive memory allocation     (bsc#976942)

  - bsc#976943: Buffer overrun in ASN1_parse

An update for openssl is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

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

Security Fix(es) :

* A flaw was found in the way OpenSSL encoded certain ASN.1 data structures. An attacker could use this flaw to create a specially crafted certificate which, when verified or re-encoded by OpenSSL, could cause it to crash, or execute arbitrary code using the permissions of the user running an application compiled against the OpenSSL library. (CVE-2016-2108)

* Two integer overflow flaws, leading to buffer overflows, were found in the way the EVP_EncodeUpdate() and EVP_EncryptUpdate() functions of OpenSSL parsed very large amounts of input data. A remote attacker could use these flaws to crash an application using OpenSSL or, possibly, execute arbitrary code with the permissions of the user running that application. (CVE-2016-2105, CVE-2016-2106)

* It was discovered that OpenSSL leaked timing information when decrypting TLS/SSL and DTLS protocol encrypted records when the connection used the AES CBC cipher suite and the server supported AES-NI. A remote attacker could possibly use this flaw to retrieve plain text from encrypted packets by using a TLS/SSL or DTLS server as a padding oracle. (CVE-2016-2107)

* Several flaws were found in the way BIO_*printf functions were implemented in OpenSSL. Applications which passed large amounts of untrusted data through these functions could crash or potentially execute code with the permissions of the user running such an application. (CVE-2016-0799, CVE-2016-2842)

* A denial of service flaw was found in the way OpenSSL parsed certain ASN.1-encoded data from BIO (OpenSSL's I/O abstraction) inputs. An application using OpenSSL that accepts untrusted ASN.1 BIO input could be forced to allocate an excessive amount of data. (CVE-2016-2109)

Red Hat would like to thank the OpenSSL project for reporting CVE-2016-2108, CVE-2016-2842, CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, and CVE-2016-0799. Upstream acknowledges Huzaifa Sidhpurwala (Red Hat), Hanno Böck, and David Benjamin (Google) as the original reporters of CVE-2016-2108; Guido Vranken as the original reporter of CVE-2016-2842, CVE-2016-2105, CVE-2016-2106, and CVE-2016-0799; and Juraj Somorovsky as the original reporter of CVE-2016-2107.

According to its self-reported version, the Cisco TelePresence Video Communication Server (VCS) / Expressway running on the remote host is 8.x prior to 8.8. It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass vulnerability exists, known as     Bar Mitzvah, due to improper combination of state data     with key data by the RC4 cipher algorithm during the     initialization phase. A man-in-the-middle attacker can     exploit this, via a brute-force attack using LSB values,     to decrypt the traffic. (CVE-2015-2808)

  - A flaw exists in the web framework of TelePresence Video     Communication Server (VCS) Expressway due to missing     authorization checks on certain administrative pages. An     authenticated, remote attacker can exploit this to     bypass read-only restrictions and install Tandberg Linux     Packages (TLPs) without proper authorization.
    (CVE-2015-6413)

  - A flaw exists in certificate management and validation     for the Mobile and Remote Access (MRA) component due to     improper input validation of a trusted certificate. An     unauthenticated, remote attacker can exploit this, using     a trusted certificate, to bypass authentication and gain     access to internal HTTP system resources.
    (CVE-2016-1444)

  - A heap buffer overflow condition exists in the     EVP_EncodeUpdate() function within file     crypto/evp/encode.c that is triggered when handling     a large amount of input data. An unauthenticated, remote     attacker can exploit this to cause a denial of service     condition. (CVE-2016-2105)

  - A heap buffer overflow condition exists in the     EVP_EncryptUpdate() function within file     crypto/evp/evp_enc.c that is triggered when handling a     large amount of input data after a previous call occurs     to the same function with a partial block. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition. (CVE-2016-2106)

  - Multiple flaws exist in the aesni_cbc_hmac_sha1_cipher()     function in file crypto/evp/e_aes_cbc_hmac_sha1.c and     the aesni_cbc_hmac_sha256_cipher() function in file     crypto/evp/e_aes_cbc_hmac_sha256.c that are triggered     when the connection uses an AES-CBC cipher and AES-NI     is supported by the server. A man-in-the-middle attacker     can exploit these to conduct a padding oracle attack,     resulting in the ability to decrypt the network traffic.
    (CVE-2016-2107)

  - A remote code execution vulnerability exists in the     ASN.1 encoder due to an underflow condition that occurs     when attempting to encode the value zero represented as     a negative integer. An unauthenticated, remote attacker     can exploit this to corrupt memory, resulting in the     execution of arbitrary code. (CVE-2016-2108)

  - Multiple unspecified flaws exist in the d2i BIO     functions when reading ASN.1 data from a BIO due to     invalid encoding causing a large allocation of memory.
    An unauthenticated, remote attacker can exploit these to     cause a denial of service condition through resource     exhaustion. (CVE-2016-2109)

  - An out-of-bounds read error exists in the     X509_NAME_oneline() function within file     crypto/x509/x509_obj.c when handling very long ASN.1     strings. An unauthenticated, remote attacker can exploit     this to disclose the contents of stack memory.
    (CVE-2016-2176)

  - An information disclosure vulnerability exists in the     file system permissions due to certain files having     overly permissive permissions. An unauthenticated, local     attacker can exploit this to disclose sensitive     information. (Cisco bug ID CSCuw55636)

Note that Cisco bug ID CSCuw55636 and CVE-2015-6413 only affect versions 8.6.x prior to 8.8.

The remote host is affected by the vulnerability described in GLSA-201612-16 (OpenSSL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenSSL. Please review       the CVE identifiers and the International Association for Cryptologic       Research&rsquo;s (IACR) paper, &ldquo;Make Sure DSA Signing Exponentiations       Really are Constant-Time&rdquo; for further details.
  Impact :

    Remote attackers could cause a Denial of Service condition or have other       unspecified impacts. Additionally, a time based side-channel attack may       allow a local attacker to recover a private DSA key.
  Workaround :

    There is no known workaround at this time.

The version of Juniper ScreenOS running on the remote host is 6.3.x prior to 6.3.0r23. It is, therefore, affected by multiple vulnerabilities in its bundled version of OpenSSL :

  - A flaw exists in the SSLv2 implementation,     specifically in the get_client_master_key() function     within file s2_srvr.c, due to accepting a nonzero     CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an     arbitrary cipher. A man-in-the-middle attacker can     exploit this to determine the MASTER-KEY value and     decrypt TLS ciphertext by leveraging a Bleichenbacher     RSA padding oracle. (CVE-2016-0703)

  - A flaw exists in the SSLv2 oracle protection mechanism,     specifically in the get_client_master_key() function     within file s2_srvr.c, due to incorrectly overwriting     MASTER-KEY bytes during use of export cipher suites.
    A remote attackers can exploit this to more easily     decrypt TLS ciphertext by leveraging a Bleichenbacher     RSA padding oracle. (CVE-2016-0704)

  - A NULL pointer dereference flaw exists in the     BN_hex2bn() and BN_dec2bn() functions. A remote attacker     can exploit this to trigger a heap corruption, resulting     in the execution of arbitrary code. (CVE-2016-0797)

  - A flaw exists that allows a cross-protocol     Bleichenbacher padding oracle attack known as DROWN     (Decrypting RSA with Obsolete and Weakened eNcryption).
    This vulnerability exists due to a flaw in the Secure     Sockets Layer Version 2 (SSLv2) implementation, and it     allows captured TLS traffic to be decrypted. A     man-in-the-middle attacker can exploit this to decrypt     the TSL connection by utilizing previously captured     traffic and weak cryptography along with a series of     specially crafted connections to an SSLv2 server that     uses the same private key. (CVE-2016-0800)

  - A heap buffer overflow condition exists in the     EVP_EncodeUpdate() function within file     crypto/evp/encode.c that is triggered when handling     a large amount of input data. An unauthenticated, remote     attacker can exploit this to cause a denial of service     condition. (CVE-2016-2105)

  - A heap buffer overflow condition exists in the     EVP_EncryptUpdate() function within file     crypto/evp/evp_enc.c that is triggered when handling a     large amount of input data after a previous call occurs     to the same function with a partial block. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition. (CVE-2016-2106)

  - A remote code execution vulnerability exists in the     ASN.1 encoder due to an underflow condition that occurs     when attempting to encode the value zero represented as     a negative integer. An unauthenticated, remote attacker     can exploit this to corrupt memory, resulting in the     execution of arbitrary code. (CVE-2016-2108)

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

ID	Name	Product	Family	Published	Updated	Severity
289114	MiracleLinux 4 : openssl-1.0.1e-48.1.0.1.AXS4 (AXSA:2016-460:03)	Nessus	Miracle Linux Local Security Checks	1/16/2026	1/17/2026	critical
90864	Amazon Linux AMI : openssl (ALAS-2016-695)	Nessus	Amazon Linux Local Security Checks	5/4/2016	4/11/2019	critical
90914	SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2016:1233-1)	Nessus	SuSE Local Security Checks	5/5/2016	1/6/2021	critical
90933	openSUSE Security Update : openssl (openSUSE-2016-561)	Nessus	SuSE Local Security Checks	5/6/2016	1/19/2021	critical
90949	Fedora 24 : openssl-1.0.2h-1.fc24 (2016-1411324654)	Nessus	Fedora Local Security Checks	5/9/2016	1/11/2021	critical
91067	openSUSE Security Update : openssl (openSUSE-2016-562)	Nessus	SuSE Local Security Checks	5/12/2016	1/19/2021	critical
91171	CentOS 6 : openssl (CESA-2016:0996)	Nessus	CentOS Local Security Checks	5/17/2016	1/4/2021	critical
92045	Cisco TelePresence VCS / Expressway 8.x < 8.8 Multiple Vulnerabilities (Bar Mitzvah)	Nessus	CISCO	7/14/2016	4/11/2022	critical
95602	GLSA-201612-16 : OpenSSL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	12/7/2016	1/15/2026	critical
94679	Juniper ScreenOS 6.3.x < 6.3.0r23 Multiple Vulnerabilities in OpenSSL (JSA10759) (DROWN)	Nessus	Firewalls	11/10/2016	1/19/2026	critical

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