According to the versions of the openssl098e package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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 Fix(es):The TLS protocol 1.2 and     earlier, when a DHE_EXPORT ciphersuite is enabled on a     server but not on a client, does not properly convey a     DHE_EXPORT choice, which allows man-in-the-middle     attackers to conduct cipher-downgrade attacks by     rewriting a ClientHello with DHE replaced by DHE_EXPORT     and then rewriting a ServerHello with DHE_EXPORT     replaced by DHE, aka the 'Logjam'     issue.(CVE-2015-4000)The dsa_sign_setup function in     crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does     not properly ensure the use of constant-time     operations, which makes it easier for local users to     discover a DSA private key via a timing side-channel     attack.(CVE-2016-2178)While parsing an IPAddressFamily     extension in an X.509 certificate, it is possible to do     a one-byte overread. This would result in an incorrect     text display of the certificate. This bug has been     present since 2006 and is present in all versions of     OpenSSL before 1.0.2m and 1.1.0g.(CVE-2017-3735)The     Anti-Replay feature in the DTLS implementation in     OpenSSL before 1.1.0 mishandles early use of a new     epoch number in conjunction with a large sequence     number, which allows remote attackers to cause a denial     of service (false-positive packet drops) via spoofed     DTLS records, related to rec_layer_d1.c and     ssl3_record.c.(CVE-2016-2181)The SSL protocol 3.0, as     used in OpenSSL through 1.0.1i and other products, uses     nondeterministic CBC padding, which makes it easier for     man-in-the-middle attackers to obtain cleartext data     via a padding-oracle attack, aka the 'POODLE'     issue.(CVE-2014-3566)OpenStack Identity (Keystone)     before 2014.1.1 does not properly handle when a role is     assigned to a group that has the same ID as a user,     which allows remote authenticated users to gain     privileges that are assigned to a group with the same     ID.(CVE-2014-0204)Double free vulnerability in     d1_both.c in the DTLS implementation in OpenSSL 0.9.8     before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before     1.0.1i allows remote attackers to cause a denial of     service (application crash) via crafted DTLS packets     that trigger an error     condition.(CVE-2014-3505)d1_both.c in the DTLS     implementation in OpenSSL 0.9.8 before 0.9.8zb, 1.0.0     before 1.0.0n, and 1.0.1 before 1.0.1i allows remote     attackers to cause a denial of service (memory     consumption) via crafted DTLS handshake messages that     trigger memory allocations corresponding to large     length values.(CVE-2014-3506)The BN_sqr implementation     in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and     1.0.1 before 1.0.1k does not properly calculate the     square of a BIGNUM value, which might make it easier     for remote attackers to defeat cryptographic protection     mechanisms via unspecified vectors, related to     crypto/bn/asm/mips.pl, crypto/bn/asm/x86_64-gcc.c, and     crypto/bn/bn_asm.c.(CVE-2014-3570)The OBJ_obj2txt     function in crypto/objects/obj_dat.c in OpenSSL 0.9.8     before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before     1.0.1i, when pretty printing is used, does not ensure     the presence of '\0' characters, which allows     context-dependent attackers to obtain sensitive     information from process stack memory by reading output     from X509_name_oneline, X509_name_print_ex, and     unspecified other functions.(CVE-2014-3508)The     dtls1_clear_queues function in ssl/d1_lib.c in OpenSSL     before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before     1.0.1h frees data structures without considering that     application data can arrive between a ChangeCipherSpec     message and a Finished message, which allows remote     DTLS peers to cause a denial of service (memory     corruption and application crash) or possibly have     unspecified other impact via unexpected application     data.(CVE-2014-8176)The DES and Triple DES ciphers, as     used in the TLS, SSH, and IPSec protocols and other     protocols and products, have a birthday bound of     approximately four billion blocks, which makes it     easier for remote attackers to obtain cleartext data     via a birthday attack against a long-duration encrypted     session, as demonstrated by an HTTPS session using     Triple DES in CBC mode, aka a 'Sweet32'     attack.(CVE-2016-2183)The ASN1_item_ex_d2i function in     crypto/asn1/tasn_dec.c in OpenSSL before 0.9.8zf, 1.0.0     before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before     1.0.2a does not reinitialize CHOICE and ADB data     structures, which might allow attackers to cause a     denial of service (invalid write operation and memory     corruption) by leveraging an application that relies on     ASN.1 structure reuse.(CVE-2015-0287)The     dtls1_get_message_fragment function in d1_both.c in     OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1     before 1.0.1h allows remote attackers to cause a denial     of service (recursion and client crash) via a DTLS     hello message in an invalid DTLS     handshake.(CVE-2014-0221)The     ssl3_send_client_key_exchange function in s3_clnt.c in     OpenSSL 0.9.8 before 0.9.8zb, 1.0.0 before 1.0.0n, and     1.0.1 before 1.0.1i allows remote DTLS servers to cause     a denial of service (NULL pointer dereference and     client application crash) via a crafted handshake     message in conjunction with a (1) anonymous DH or (2)     anonymous ECDH ciphersuite.(CVE-2014-3510)The     X509_to_X509_REQ function in crypto/x509/x509_req.c in     OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1     before 1.0.1m, and 1.0.2 before 1.0.2a might allow     attackers to cause a denial of service (NULL pointer     dereference and application crash) via an invalid     certificate key.(CVE-2015-0288)The PKCS#7     implementation in OpenSSL before 0.9.8zf, 1.0.0 before     1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a     does not properly handle a lack of outer ContentInfo,     which allows attackers to cause a denial of service     (NULL pointer dereference and application crash) by     leveraging an application that processes arbitrary     PKCS#7 data and providing malformed data with ASN.1     encoding, related to crypto/pkcs7/pk7_doit.c and     crypto/pkcs7/pk7_lib.c.(CVE-2015-0289)The     PKCS7_dataDecodefunction in crypto/pkcs7/pk7_doit.c in     OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1     before 1.0.1n, and 1.0.2 before 1.0.2b allows remote     attackers to cause a denial of service (NULL pointer     dereference and application crash) via a PKCS#7 blob     that uses ASN.1 encoding and lacks inner     EncryptedContent data.(CVE-2015-1790)

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

Several vulnerabilities were discovered in OpenSSL :

  - CVE-2016-2177     Guido Vranken discovered that OpenSSL uses undefined     pointer arithmetic. Additional information can be found     at     https://www.openssl.org/blog/blog/2016/06/27/undefined-p     ointer-arithmetic/

  - CVE-2016-2178     Cesar Pereida, Billy Brumley and Yuval Yarom discovered     a timing leak in the DSA code.

  - CVE-2016-2179 / CVE-2016-2181     Quan Luo and the OCAP audit team discovered denial of     service vulnerabilities in DTLS.

  - CVE-2016-2180 / CVE-2016-2182 / CVE-2016-6303     Shi Lei discovered an out-of-bounds memory read in     TS_OBJ_print_bio() and an out-of-bounds write in     BN_bn2dec() and MDC2_Update().

  - CVE-2016-2183     DES-based cipher suites are demoted from the HIGH group     to MEDIUM as a mitigation for the SWEET32 attack.

  - CVE-2016-6302     Shi Lei discovered that the use of SHA512 in TLS session     tickets is susceptible to denial of service.

  - CVE-2016-6304     Shi Lei discovered that excessively large OCSP status     request may result in denial of service via memory     exhaustion.

  - CVE-2016-6306     Shi Lei discovered that missing message length     validation when parsing certificates may potentially     result in denial of service.

From Red Hat Security Advisory 2016:1940 :

An update for openssl is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.

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 memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it enabled OCSP stapling support. (CVE-2016-6304)

* It was discovered that OpenSSL did not always use constant time operations when computing Digital Signature Algorithm (DSA) signatures. A local attacker could possibly use this flaw to obtain a private DSA key belonging to another user or service running on the same system. (CVE-2016-2178)

* It was discovered that the Datagram TLS (DTLS) implementation could fail to release memory in certain cases. A malicious DTLS client could cause a DTLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory. (CVE-2016-2179)

* A flaw was found in the Datagram TLS (DTLS) replay protection implementation in OpenSSL. A remote attacker could possibly use this flaw to make a DTLS server using OpenSSL to reject further packets sent from a DTLS client over an established DTLS connection.
(CVE-2016-2181)

* An out of bounds write flaw was discovered in the OpenSSL BN_bn2dec() function. An attacker able to make an application using OpenSSL to process a large BIGNUM could cause the application to crash or, possibly, execute arbitrary code. (CVE-2016-2182)

* A flaw was found in the DES/3DES cipher was used as part of the TLS/SSL protocol. A man-in-the-middle attacker could use this flaw to recover some plaintext data by capturing large amounts of encrypted traffic between TLS/ SSL server and client if the communication used a DES/3DES based ciphersuite. (CVE-2016-2183)

This update mitigates the CVE-2016-2183 issue by lowering priority of DES cipher suites so they are not preferred over cipher suites using AES. For compatibility reasons, DES cipher suites remain enabled by default and included in the set of cipher suites identified by the HIGH cipher string. Future updates may move them to MEDIUM or not enable them by default.

* An integer underflow flaw leading to a buffer over-read was found in the way OpenSSL parsed TLS session tickets. A remote attacker could use this flaw to crash a TLS server using OpenSSL if it used SHA-512 as HMAC for session tickets. (CVE-2016-6302)

* Multiple integer overflow flaws were found in the way OpenSSL performed pointer arithmetic. A remote attacker could possibly use these flaws to cause a TLS/SSL server or client using OpenSSL to crash. (CVE-2016-2177)

* An out of bounds read flaw was found in the way OpenSSL formatted Public Key Infrastructure Time-Stamp Protocol data for printing. An attacker could possibly cause an application using OpenSSL to crash if it printed time stamp data from the attacker. (CVE-2016-2180)

* Multiple out of bounds read flaws were found in the way OpenSSL handled certain TLS/SSL protocol handshake messages. A remote attacker could possibly use these flaws to crash a TLS/SSL server or client using OpenSSL. (CVE-2016-6306)

Red Hat would like to thank the OpenSSL project for reporting CVE-2016-6304 and CVE-2016-6306 and OpenVPN for reporting CVE-2016-2183. Upstream acknowledges Shi Lei (Gear Team of Qihoo 360 Inc.) as the original reporter of CVE-2016-6304 and CVE-2016-6306; and Karthikeyan Bhargavan (Inria) and Gaetan Leurent (Inria) as the original reporters of CVE-2016-2183.

This update for openssl fixes the following issues: OpenSSL Security Advisory [22 Sep 2016] (bsc#999665) Severity: High

  - OCSP Status Request extension unbounded memory growth     (CVE-2016-6304) (bsc#999666) Severity: Low

  - Pointer arithmetic undefined behaviour (CVE-2016-2177)     (bsc#982575)

  - Constant time flag not preserved in DSA signing     (CVE-2016-2178) (bsc#983249)

  - DTLS buffered message DoS (CVE-2016-2179) (bsc#994844)

  - OOB read in TS_OBJ_print_bio() (CVE-2016-2180)     (bsc#990419)

  - DTLS replay protection DoS (CVE-2016-2181) (bsc#994749)

  - OOB write in BN_bn2dec() (CVE-2016-2182) (bsc#993819)

  - Birthday attack against 64-bit block ciphers (SWEET32)     (CVE-2016-2183) (bsc#995359)

  - Malformed SHA512 ticket DoS (CVE-2016-6302) (bsc#995324)

  - OOB write in MDC2_Update() (CVE-2016-6303) (bsc#995377)

  - Certificate message OOB reads (CVE-2016-6306)     (bsc#999668) More information can be found on:
    https://www.openssl.org/news/secadv/20160922.txt Also     following bugs were fixed :

  - update expired S/MIME certs (bsc#979475)

  - improve s390x performance (bsc#982745)

  - allow >= 64GB AESGCM transfers (bsc#988591)

  - fix crash in print_notice (bsc#998190)

  - resume reading from /dev/urandom when interrupted by a     signal (bsc#995075)

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.

The version of OpenSSL installed on the remote AIX host is affected by the following vulnerabilities :

  - Multiple integer overflow conditions exist in s3_srvr.c,     ssl_sess.c, and t1_lib.c due to improper use of pointer     arithmetic for heap-buffer boundary checks. An     unauthenticated, remote attacker can exploit this to     cause a denial of service. (CVE-2016-2177)

  - An information disclosure vulnerability exists in the     dsa_sign_setup() function in dsa_ossl.c due to a failure     to properly ensure the use of constant-time operations.
    An unauthenticated, remote attacker can exploit this,     via a timing side-channel attack, to disclose DSA key     information. (CVE-2016-2178)

  - A denial of service vulnerability exists in the DTLS     implementation due to a failure to properly restrict the     lifetime of queue entries associated with unused     out-of-order messages. An unauthenticated, remote     attacker can exploit this, by maintaining multiple     crafted DTLS sessions simultaneously, to exhaust memory.
    (CVE-2016-2179)

  - An out-of-bounds read error exists in the X.509 Public     Key Infrastructure Time-Stamp Protocol (TSP)     implementation. An unauthenticated, remote attacker can     exploit this, via a crafted time-stamp file that is     mishandled by the 'openssl ts' command, to cause     denial of service or to disclose sensitive information.
    (CVE-2016-2180)

  - A denial of service vulnerability exists in the     Anti-Replay feature in the DTLS implementation due to     improper handling of epoch sequence numbers in records.
    An unauthenticated, remote attacker can exploit this,     via spoofed DTLS records, to cause legitimate packets to     be dropped. (CVE-2016-2181)

  - An overflow condition exists in the BN_bn2dec() function     in bn_print.c due to improper validation of     user-supplied input when handling BIGNUM values. An     unauthenticated, remote attacker can exploit this to     crash the process. (CVE-2016-2182)

  - A vulnerability exists, known as SWEET32, in the 3DES     and Blowfish algorithms due to the use of weak 64-bit     block ciphers by default. A man-in-the-middle attacker     who has sufficient resources can exploit this     vulnerability, via a 'birthday' attack, to detect a     collision that leaks the XOR between the fixed secret     and a known plaintext, allowing the disclosure of the     secret text, such as secure HTTPS cookies, and possibly     resulting in the hijacking of an authenticated session.
    (CVE-2016-2183)

  - A flaw exists in the tls_decrypt_ticket() function in     t1_lib.c due to improper handling of ticket HMAC     digests. An unauthenticated, remote attacker can exploit     this, via a ticket that is too short, to crash the     process, resulting in a denial of service.
    (CVE-2016-6302)

  - An integer overflow condition exists in the     MDC2_Update() function in mdc2dgst.c due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this to cause a heap-based     buffer overflow, resulting in a denial of service     condition or possibly the execution of arbitrary code.
    (CVE-2016-6303)

  - A flaw exists in the ssl_parse_clienthello_tlsext()     function in t1_lib.c due to improper handling of overly     large OCSP Status Request extensions from clients. An     unauthenticated, remote attacker can exploit this, via     large OCSP Status Request extensions, to exhaust memory     resources, resulting in a denial of service condition.
    (CVE-2016-6304)

  - An out-of-bounds read error exists in the certificate     parser that allows an unauthenticated, remote attacker     to cause a denial of service via crafted certificate     operations. (CVE-2016-6306)

  - A flaw exists in the GOST ciphersuites due to the use of     long-term keys to establish an encrypted connection. A     man-in-the-middle attacker can exploit this, via a Key     Compromise Impersonation (KCI) attack, to impersonate     the server.

  - A denial of service vulnerability exists in x509_vfy.c     due to improper handling of certificate revocation lists     (CRLs). An unauthenticated, remote attacker can exploit     this, via a specially crafted CRL, to cause a NULL     pointer dereference, resulting in a crash of the     service. (CVE-2016-7052)

The version of Arista Networks EOS running on the remote device is affected by multiple vulnerabilities in the included OpenSSL library :

  - An information disclosure vulnerability exists in the     dsa_sign_setup() function in dsa_ossl.c due to a failure     to properly ensure the use of constant-time operations.
    An unauthenticated, remote attacker can exploit this,     via a timing side-channel attack, to disclose DSA key     information. (CVE-2016-2178)

  - A vulnerability exists, known as SWEET32, in the 3DES     and Blowfish algorithms due to the use of weak 64-bit     block ciphers by default. A man-in-the-middle attacker     who has sufficient resources can exploit this     vulnerability, via a 'birthday' attack, to detect a     collision that leaks the XOR between the fixed secret     and a known plaintext, allowing the disclosure of the     secret text, such as secure HTTPS cookies, and possibly     resulting in the hijacking of an authenticated session.
    (CVE-2016-2183)

This update brings the new upstream nodejs LTS version 4.6.0, fixing bugs and security issues :

  - Nodejs embedded openssl version update

  + upgrade to 1.0.2j (CVE-2016-6304, CVE-2016-2183,     CVE-2016-2178, CVE-2016-6306, CVE-2016-7052)

  + remove support for dynamic 3rd party engine modules

- http: Properly validate for allowable characters in input user data.
This introduces a new case where throw may occur when configuring HTTP responses, users should already be adopting try/catch here.
  (CVE-2016-5325, bsc#985201)

  - tls: properly validate wildcard certificates     (CVE-2016-7099, bsc#1001652)

  - buffer: Zero-fill excess bytes in new Buffer objects     created with Buffer.concat()

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.

According to its banner, the version of OpenSSL on the remote host is 1.0.1 prior to 1.0.1u, or 1.0.2 prior to 1.0.2i.  It is therefore affected by the following vulnerabilities :

 - A flaw exists in 'ssl/s3_srvr.c', 'ssl/ssl_sess.c', and 'ssl/t1_lib.c' that may under certain circumstances lead to integer overflows and allow an attacker to have an unspecified impact. (CVE-2016-2177)
 - A flaw exists in 'crypto/dsa/dsa_ossl.c' that is triggered as the DSA signing algorithm does not properly run in constant time.  This may potentially allow a context-dependent attacker to conduct e.g. a side channel attack and gain unauthorized access to DSA key information. (CVE-2016-2178)
 - A flaw exists that is due to the system not handling fragmented DTLS buffered messages correctly.  There are two scenarios where messages could result in the queue not being cleared and memory not being freed.  The first occurs when a full message is received after a fragment of the same message, and the system uses the full message while ignoring the fragmented message without removing it from queue.  The second occurs when a peer sends a 'future' message with extraneous packets containing a sequence number higher than the Finished message, resulting in the packets not being removed from queue.  With a saturation of either type of message, a remote attacker can exhaust up to 1500k of memory per connection, exhausting memory leading to a remote denial of service. (CVE-2016-2179)
 - An out-of-bounds read flaw exists in the 'TS_OBJ_print_bio()' function in 'crypto/ts/ts_lib.c'.  This may allow a context-dependent attacker to have an unspecified impact that may potentially include crashing a process linked against the library or disclosing memory contents. (CVE-2016-2180)
 - A flaw exists in the DTLS implementation that is triggered when handling epoch sequence numbers in records.  This may allow a remote attacker to cause legitimate packets to be dropped. (CVE-2016-2181)
 - An overflow condition exists in the 'BN_bn2dec()' function in 'crypto/bn/bn_print.c'.  The issue is triggered as certain input is not properly validated when handling BIGNUM values. This may allow a context-dependent attacker to cause a buffer overflow, resulting in a denial of service in a process linked against the library. (CVE-2016-2182)
 - A flaw exists in the 'tls_decrypt_ticket()' function in 'ssl/t1_lib.c' that is triggered during the handling of ticket HMAC digest.  This may allow a remote attacker to crash the service. (CVE-2016-6302)
 - An overflow condition exists in the 'MDC2_Update()' function in 'crypto/mdc2/mdc2dgst.c' that is triggered as certain input is not properly validated.  This may allow a context-dependent attacker to cause a heap-based buffer overflow, crashing a process linked against the library or potentially allowing the execution of arbitrary code. (CVE-2016-6303)
 - A flaw exists in the 'ssl_parse_clienthello_tlsext()' function in 'ssl/t1_lib.c' that is triggered when handling overly large OCSP Status Request extensions from clients.  This may allow a remote attacker to exhaust available memory in a process linked against the library. (CVE-2016-6304)
 - An out-of-bounds read flaw exists that is triggered when handling client certificate, client certificate request, and server certificate messages.  This may allow a remote attacker to potentially crash a process linked against the library. (CVE-2016-6306)

ID	Name	Product	Family	Published	Updated	Severity
131662	EulerOS 2.0 SP2 : openssl098e (EulerOS-SA-2019-2509)	Nessus	Huawei Local Security Checks	12/4/2019	12/5/2022	high
93668	Debian DSA-3673-1 : openssl - security update	Nessus	Debian Local Security Checks	9/23/2016	1/11/2021	critical
93759	Oracle Linux 6 / 7 : openssl (ELSA-2016-1940)	Nessus	Oracle Linux Local Security Checks	9/28/2016	1/14/2021	critical
93765	SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2016:2394-1)	Nessus	SuSE Local Security Checks	9/28/2016	1/6/2021	critical
95255	AIX OpenSSL Advisory : openssl_advisory21.asc (SWEET32)	Nessus	AIX Local Security Checks	11/22/2016	4/21/2023	critical
107066	Arista Networks EOS Multiple Vulnerabilities (SA0024) (SWEET32)	Nessus	Misc.	2/28/2018	3/13/2020	high
119982	SUSE SLES12 Security Update : nodejs4 (SUSE-SU-2016:2470-1)	Nessus	SuSE Local Security Checks	1/2/2019	1/27/2022	high
9625	OpenSSL 1.0.1 < 1.0.1u / 1.0.2 < 1.0.2i Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	10/6/2016	3/6/2019	high

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