The version of OpenSSL installed on the remote host is prior to 1.0.2e. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.2e advisory.

  - The ASN1_TFLG_COMBINE implementation in crypto/asn1/tasn_dec.c in OpenSSL before 0.9.8zh, 1.0.0 before     1.0.0t, 1.0.1 before 1.0.1q, and 1.0.2 before 1.0.2e mishandles errors caused by malformed X509_ATTRIBUTE     data, which allows remote attackers to obtain sensitive information from process memory by triggering a     decoding failure in a PKCS#7 or CMS application. (CVE-2015-3195)

  - crypto/rsa/rsa_ameth.c in OpenSSL 1.0.1 before 1.0.1q and 1.0.2 before 1.0.2e allows remote attackers to     cause a denial of service (NULL pointer dereference and application crash) via an RSA PSS ASN.1 signature     that lacks a mask generation function parameter. (CVE-2015-3194)

  - The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on     the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces     incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information     via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.
    (CVE-2015-3193)

  - The ssl3_get_key_exchange function in ssl/s3_clnt.c in OpenSSL 1.0.2 before 1.0.2e allows remote servers     to cause a denial of service (segmentation fault) via a zero p value in an anonymous Diffie-Hellman (DH)     ServerKeyExchange message. (CVE-2015-1794)

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

The Cisco AnyConnect Secure Mobility Client installed on the remote Mac OS X host is a version prior to 3.1.13015.0 or 4.2.x prior to 4.2.1035.0. It is, therefore, affected by multiple vulnerabilities in the bundled version of OpenSSL :
  - A carry propagating flaw exists in the x86_64 Montgomery     squaring implementation that may cause the BN_mod_exp()     function to produce incorrect results. An attacker can     exploit this to obtain sensitive information regarding     private keys. (CVE-2015-3193)

  - A NULL pointer dereference flaw exists in file     rsa_ameth.c when handling ASN.1 signatures that use the     RSA PSS algorithm but are missing a mask generation     function parameter. A remote attacker can exploit this     to cause the signature verification routine to crash,     leading to a denial of service. (CVE-2015-3194)

  - A flaw exists in the ASN1_TFLG_COMBINE implementation in     file tasn_dec.c related to handling malformed     X509_ATTRIBUTE structures. A remote attacker can exploit     this to cause a memory leak by triggering a decoding     failure in a PKCS#7 or CMS application, resulting in a     denial of service. (CVE-2015-3195)

  - A race condition exists in s3_clnt.c that is triggered     when PSK identity hints are incorrectly updated in the     parent SSL_CTX structure when they are received by a     multi-threaded client. A remote attacker can exploit     this, via a crafted ServerKeyExchange message, to cause     a double-free memory error, resulting in a denial of     service. (CVE-2015-3196)

  - A flaw exists in the ssl3_get_key_exchange() function     in file s3_clnt.c when handling a ServerKeyExchange     message for an anonymous DH ciphersuite with the value     of 'p' set to 0. A attacker can exploit this, by causing     a segmentation fault, to crash an application linked     against the library, resulting in a denial of service.
    (CVE-2015-1794)

The remote host is affected by the vulnerability described in GLSA-201601-05 (OpenSSL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenSSL. Please review       the upstream advisory and CVE identifiers referenced below for details.
      Note that the list includes CVE identifiers for an older OpenSSL Security       Advisory (3 Dec 2015) for which we have not issued a GLSA before.
  Impact :

    A remote attacker could disclose a server&rsquo;s private DH exponent, or       complete SSLv2 handshakes using ciphers that have been disabled on the       server.
  Workaround :

    There is no known workaround at this time.

New bind packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix security issues.

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline.
The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem.
(CVE-2017-3732)

This update for openssl fixes the following issues :

  - OpenSSL Security Advisory [07 Dec 2017]

  - CVE-2017-3737: OpenSSL 1.0.2 (starting from version     1.0.2b) introduced an \'error state\' mechanism. The     intent was that if a fatal error occurred during a     handshake then OpenSSL would move into the error state     and would immediately fail if you attempted to continue     the handshake. This works as designed for the explicit     handshake functions (SSL_do_handshake(), SSL_accept()     and SSL_connect()), however due to a bug it does not     work correctly if SSL_read() or SSL_write() is called     directly. In that scenario, if the handshake fails then     a fatal error will be returned in the initial function     call. If SSL_read()/SSL_write() is subsequently called     by the application for the same SSL object then it will     succeed and the data is passed without being     decrypted/encrypted directly from the SSL/TLS record     layer. In order to exploit this issue an application bug     would have to be present that resulted in a call to     SSL_read()/SSL_write() being issued after having already     received a fatal error. OpenSSL version 1.0.2b-1.0.2m     are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is     not affected. (bsc#1071905)

  - CVE-2017-3738: There is an overflow bug in the AVX2     Montgomery multiplication procedure used in     exponentiation with 1024-bit moduli. No EC algorithms     are affected. Analysis suggests that attacks against RSA     and DSA as a result of this defect would be very     difficult to perform and are not believed likely.
    Attacks against DH1024 are considered just feasible,     because most of the work necessary to deduce information     about a private key may be performed offline. The amount     of resources required for such an attack would be     significant. However, for an attack on TLS to be     meaningful, the server would have to share the DH1024     private key among multiple clients, which is no longer     an option since CVE-2016-0701. This only affects     processors that support the AVX2 but not ADX extensions     like Intel Haswell (4th generation). Note: The impact     from this issue is similar to CVE-2017-3736,     CVE-2017-3732 and CVE-2015-3193. (bsc#1071906)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

This update for openssl fixes the following issues :

  - OpenSSL Security Advisory [07 Dec 2017]

  - CVE-2017-3737: OpenSSL 1.0.2 (starting from version     1.0.2b) introduced an \'error state\' mechanism. The     intent was that if a fatal error occurred during a     handshake then OpenSSL would move into the error state     and would immediately fail if you attempted to continue     the handshake. This works as designed for the explicit     handshake functions (SSL_do_handshake(), SSL_accept()     and SSL_connect()), however due to a bug it does not     work correctly if SSL_read() or SSL_write() is called     directly. In that scenario, if the handshake fails then     a fatal error will be returned in the initial function     call. If SSL_read()/SSL_write() is subsequently called     by the application for the same SSL object then it will     succeed and the data is passed without being     decrypted/encrypted directly from the SSL/TLS record     layer. In order to exploit this issue an application bug     would have to be present that resulted in a call to     SSL_read()/SSL_write() being issued after having already     received a fatal error. OpenSSL version 1.0.2b-1.0.2m     are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is     not affected. (bsc#1071905)

  - CVE-2017-3738: There is an overflow bug in the AVX2     Montgomery multiplication procedure used in     exponentiation with 1024-bit moduli. No EC algorithms     are affected. Analysis suggests that attacks against RSA     and DSA as a result of this defect would be very     difficult to perform and are not believed likely.
    Attacks against DH1024 are considered just feasible,     because most of the work necessary to deduce information     about a private key may be performed offline. The amount     of resources required for such an attack would be     significant. However, for an attack on TLS to be     meaningful, the server would have to share the DH1024     private key among multiple clients, which is no longer     an option since CVE-2016-0701. This only affects     processors that support the AVX2 but not ADX extensions     like Intel Haswell (4th generation). Note: The impact     from this issue is similar to CVE-2017-3736,     CVE-2017-3732 and CVE-2015-3193. (bsc#1071906)

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 Oracle VM VirtualBox application installed on the remote host is a version prior to 4.3.36 or 5.0.18. It is, therefore, affected by an unspecified flaw in the Core subcomponent that allows a local attacker to gain elevated privileges. Additionally, multiple vulnerabilities exist in the bundled version of OpenSSL :

  - A flaw exists in the ssl3_get_key_exchange() function     in file s3_clnt.c when handling a ServerKeyExchange     message for an anonymous DH ciphersuite with the value     of 'p' set to 0. A attacker can exploit this, by causing     a segmentation fault, to crash an application linked     against the library, resulting in a denial of service.
    (CVE-2015-1794)

  - A carry propagating flaw exists in the x86_64 Montgomery     squaring implementation that may cause the BN_mod_exp()     function to produce incorrect results. An attacker can     exploit this to obtain sensitive information regarding     private keys. (CVE-2015-3193)

  - A NULL pointer dereference flaw exists in file     rsa_ameth.c due to improper handling of ASN.1 signatures     that are missing the PSS parameter. A remote attacker     can exploit this to cause the signature verification     routine to crash, resulting in a denial of service     condition. (CVE-2015-3194)

  - A flaw exists in the ASN1_TFLG_COMBINE implementation in     file tasn_dec.c related to handling malformed     X509_ATTRIBUTE structures. A remote attacker can exploit     this to cause a memory leak by triggering a decoding     failure in a PKCS#7 or CMS application, resulting in a     denial of service. (CVE-2015-3195)

  - A race condition exists in s3_clnt.c that is triggered     when PSK identity hints are incorrectly updated in the     parent SSL_CTX structure when they are received by a     multi-threaded client. A remote attacker can exploit     this, via a crafted ServerKeyExchange message, to cause     a double-free memory error, resulting in a denial of     service. (CVE-2015-3196)

  - A cipher algorithm downgrade vulnerability exists due to     a flaw that is triggered when handling cipher     negotiation. A remote attacker can exploit this to     negotiate SSLv2 ciphers and complete SSLv2 handshakes     even if all SSLv2 ciphers have been disabled on the     server. Note that this vulnerability only exists if the     SSL_OP_NO_SSLv2 option has not been disabled.
    (CVE-2015-3197)

According to its self-reported version number, the remote Juniper Junos device is affected by the following vulnerabilities related to OpenSSL :

  - A flaw exists in the ssl3_get_key_exchange() function     in file s3_clnt.c when handling a ServerKeyExchange     message for an anonymous DH ciphersuite with the value     of 'p' set to 0. A attacker can exploit this, by causing     a segmentation fault, to crash an application linked     against the library, resulting in a denial of service.
    (CVE-2015-1794)

  - A carry propagating flaw exists in the x86_64 Montgomery     squaring implementation that may cause the BN_mod_exp()     function to produce incorrect results. An attacker can     exploit this to obtain sensitive information regarding     private keys. (CVE-2015-3193)

  - A NULL pointer dereference flaw exists in file     rsa_ameth.c due to improper handling of ASN.1 signatures     that are missing the PSS parameter. A remote attacker     can exploit this to cause the signature verification     routine to crash, resulting in a denial of service     condition. (CVE-2015-3194)

  - A flaw exists in the ASN1_TFLG_COMBINE implementation in     file tasn_dec.c related to handling malformed     X509_ATTRIBUTE structures. A remote attacker can exploit     this to cause a memory leak by triggering a decoding     failure in a PKCS#7 or CMS application, resulting in a     denial of service. (CVE-2015-3195)

  - A race condition exists in s3_clnt.c that is triggered     when PSK identity hints are incorrectly updated in the     parent SSL_CTX structure when they are received by a     multi-threaded client. A remote attacker can exploit     this, via a crafted ServerKeyExchange message, to cause     a double-free memory error, resulting in a denial of     service. (CVE-2015-3196)

  - A cipher algorithm downgrade vulnerability exists due to     a flaw that is triggered when handling cipher     negotiation. A remote attacker can exploit this to     negotiate SSLv2 ciphers and complete SSLv2 handshakes     even if all SSLv2 ciphers have been disabled on the     server. Note that this vulnerability only exists if the     SSL_OP_NO_SSLv2 option has not been disabled.
    (CVE-2015-3197)

  - A key disclosure vulnerability exists due to improper     handling of cache-bank conflicts on the Intel     Sandy-bridge microarchitecture. An attacker can exploit     this to gain access to RSA key information.
    (CVE-2016-0702)

  - 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 double-free error exists due to improper validation of     user-supplied input when parsing malformed DSA private     keys. A remote attacker can exploit this to corrupt     memory, resulting in a denial of service condition or     the execution of arbitrary code. (CVE-2016-0705)

  - 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 denial of service vulnerability exists due to improper     handling of invalid usernames. A remote attacker can     exploit this, via a specially crafted username, to leak     300 bytes of memory per connection, exhausting available     memory resources. (CVE-2016-0798)

  - Multiple memory corruption issues exist that allow a     remote attacker to cause a denial of service condition     or the execution of arbitrary code. (CVE-2016-0799)

  - 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)

  - 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)

  - 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)

  - 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)

  - 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)

  - A flaw exists in the SSL_peek() function in     rec_layer_s3.c due to improper handling of empty     records. An unauthenticated, remote attacker can exploit     this, by triggering a zero-length record in an SSL_peek     call, to cause an infinite loop, resulting in a denial     of service condition. (CVE-2016-6305)

  - 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 denial of service vulnerability exists in the     state-machine implementation due to a failure to check     for an excessive length before allocating memory. An     unauthenticated, remote attacker can exploit this, via a     crafted TLS message, to exhaust memory resources.
    (CVE-2016-6307)

Note that these issues only affects devices with J-Web or the SSL service for JUNOScript enabled.

ISC 報告：

Named 可能容易受到 CVE-2015-3193 中所述的 OpenSSL 弱點影響。

如果執行查閱時發生通訊端錯誤，則錯誤的參照計數可能導致 INSIST 失敗。此瑕疵已在 CVE-2015-8461 中揭露。[RT#40945]

剖析訊息時如未充分測試會允許系統接受具有錯誤類別的記錄，進而可能在後續快取這些記錄時觸發 REQUIRE 失敗。此瑕疵已在 CVE-2015-8000 中揭露。[RT #40987]

遠端主機上安裝的 Oracle Secure Global Desktop 版本為 4.63、4.71 版或 5.2 版，且缺少 2016 年 7 月重大修補程式更新 (CPU) 中的一個安全性修補程式。因此受到以下弱點影響：

- X Server 子元件的 read_packet() 函式中存在一個整數溢位情形，這是因為計算處理傳回資料所需的記憶體量時，不當驗證使用者提供的輸入所導致。遠端攻擊者可惡意利用此弱點，藉此引發拒絕服務情形或執行任意程式碼。請注意，此弱點只會影響 4.71 和 5.2 版。(CVE-2013-2064)

- x86_64 Montgomery 平方實作的 OpenSSL 子元件中存在一個可能使 BN_mod_exp() 函式產生不正確結果的攜帶傳播瑕疵。攻擊者可加以惡意利用，取得私密金鑰的相關敏感資訊。(CVE-2015-3193)

- 處理使用 RSA PSS 演算法但缺少遮罩產生函式參數的 ASN.1 簽章時，OpenSSL 子元件的 rsa_ameth.c 檔案中存在一個 NULL 指標解除參照瑕疵。遠端攻擊者可利用此問題使簽章驗證常式當機，進而引發拒絕服務。(CVE-2015-3194)

- OpenSSL 子元件中存在一個金鑰洩漏弱點，這是因不當處理 Intel Sandy-bridge 微架構上的 cache-bank 衝突所致。
 攻擊者可惡意利用此弱點，取得 RSA 金鑰資訊的存取權。(CVE-2016-0702)

- OpenSSL 子元件的 BN_hex2bn() 與 BN_dec2bn() 函式中存在一個 NULL 指標解除參照瑕疵。遠端攻擊者可惡意利用此問題觸發堆積損毀，進而導致任意程式碼執行。(CVE-2016-0797)

- OpenSSL 子元件中存在多個記憶體損毀問題，可允許遠端攻擊者造成拒絕服務情形或執行任意程式碼。(CVE-2016-0799)

- 在 OpenSSL 子元件中，檔案 crypto/evp/encode.c 內的 EVP_EncodeUpdate() 函式存在一個堆積緩衝區溢位情形，處理大量輸入資料時會觸發此情形。未經驗證的遠端攻擊者可加以惡意利用，進而引發拒絕服務情形。(CVE-2016-2105)

- 在 OpenSSL 子元件中，crypto/evp/e_aes_cbc_hmac_sha1.c 檔案中的 aesni_cbc_hmac_sha1_cipher() 函式及 crypto/evp/e_aes_cbc_hmac_sha256.c 檔案中的 aesni_cbc_hmac_sha256_cipher() 函式存在多個瑕疵，連線使用 AES-CBC 密碼，且伺服器支援 AES-NI 時，可觸發這些瑕疵。攔截式攻擊者可惡意利用這些弱點，發動 padding oracle 攻擊，進而解密網路流量。
 (CVE-2016-2107)

- OpenSSL 子元件中存在一個不明瑕疵，其可允許遠端攻擊者執行任意程式碼。(CVE-2016-3613)

Guy Leaver 發現 OpenSSL 在 p 值設為 0 時，未正確處理匿名 DH 加密套件的 ServerKeyExchange。遠端攻擊者可能利用此問題造成 OpenSSL 損毀，從而導致拒絕服務。此問題只會影響 Ubuntu 15.10。(CVE-2015-1794)

Hanno Bock 發現 OpenSSL Montgomery 平方演算法在 x86_64 上使用時，可能會產生不正確的結果。遠端攻擊者可能利用此問題破解加密。
此問題只會影響 Ubuntu 15.10。(CVE-2015-3193)

Loic Jonas Etienne 發現，在缺少 PSS 參數時，OpenSSL 未正確處理 ASN.1 簽章。遠端攻擊者可能利用此問題造成 OpenSSL 損毀，從而導致拒絕服務。(CVE-2015-3194)

Adam Langley 發現 OpenSSL 未正確處理格式錯誤的 X509_ATTRIBUTE 結構。遠端攻擊者可能利用此問題造成 OpenSSL 消耗資源，進而導致拒絕服務。(CVE-2015-3195)

據發現，OpenSSL 未正確處理 PSK 身分提示。
遠端攻擊者可能利用此問題造成 OpenSSL 損毀，從而導致拒絕服務。此問題僅適用於 Ubuntu 12.04 LTS、Ubuntu 14.04 LTS 和 Ubuntu 15.04。(CVE-2015-3196)

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前述描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

Slackware 13.0、13.1、13.37、14.0、14.1 和最新版本有最新的 openssl 套件，可修正安全性問題。

遠端主機上安裝的 Cisco AnyConnect Secure Mobility Client 為 3.1.13015.0 之前的版本，或是 4.2.1035.0 之前的 4.2.x 版。
因此受到隨附 OpenSSL 版本中的多個弱點影響：
 
- 在 x86_64 Montgomery 平方實作中存在一個可能使 BN_mod_exp() 函式產生不正確結果的攜帶傳播瑕疵。攻擊者可加以惡意利用，取得私密金鑰的相關敏感資訊。(CVE-2015-3193)

- 處理使用 RSA PSS 演算法但缺少遮罩產生函式參數的 ASN.1 簽章時，rsa_ameth.c 檔案中存在一個 NULL 指標解除參照瑕疵。遠端攻擊者可利用此問題使簽章驗證常式當機，進而引發拒絕服務。(CVE-2015-3194)

- tasn_dec.c 檔案中的 ASN1_TFLG_COMBINE 實作存有一個瑕疵，與處理格式有誤之 X509_ATTRIBUTE 結構有關。遠端攻擊者可能利用此弱點，透過觸發 PKCS#7 或 CMS 應用程式中的解碼錯誤來造成記憶體洩漏，進而導致拒絕服務。(CVE-2015-3195)

- s3_clnt.c 中存在一個爭用情形，當多執行緒用戶端收到 PSK 身分提示，而父項 SSL_CTX 結構錯誤更新這些提示時，會觸發此爭用情形。遠端攻擊者可惡意利用這點，透過特製的 ServerKeyExchange 訊息，導致重複釋放記憶體錯誤，進而造成拒絕服務。(CVE-2015-3196)

- 在 ‘p’ 值設為 0 的情況下處理匿名 DH 加密套件的 ServerKeyExchange 訊息時，在 s3_clnt.c 檔案的 ssl3_get_key_exchange() 函式中存在一個瑕疵。攻擊者可以透過造成分割錯誤來加以惡意利用，使與程式庫連結的應用程式損毀，進而導致拒絕服務。
 (CVE-2015-1794)

According to its banner, the version of OpenSSL on the remote host is 1.0.2 prior to 1.0.2e and is affected by the following vulnerabilities :

 - A flaw in the 'ssl3_get_key_exchange()' function in 'ssl/s3_clnt.c' is triggered when handling a 'ServerKeyExchange' for an anon DH ciphersuite with the value of 'p' set to 0. This may allow a context-dependent attacker to crash an application linked against the library. (CVE-2015-1794)
 - A carry propagating flaw exists within the x86_64 Montgomery squaring procedure. This may cause 'BN_mod_exp' to produce incorrect results, which may potentially allow an attacker to derive information regarding private keys. (CVE-2015-3193)

The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
87222	OpenSSL 1.0.2 < 1.0.2e Multiple Vulnerabilities	Nessus	Web Servers	2015/12/7	2024/10/23	high
88101	Mac OS X : Cisco AnyConnect Secure Mobility Client < 3.1.13015.0 / 4.2.x < 4.2.1035.0 Multiple OpenSSL Vulnerabilities	Nessus	MacOS X Local Security Checks	2016/1/22	2018/7/14	medium
88586	GLSA-201601-05 : OpenSSL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2016/2/5	2021/1/11	high
87375	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : bind (SSA:2015-349-01)	Nessus	Slackware Local Security Checks	2015/12/16	2021/1/14	high
97218	F5 Networks BIG-IP : OpenSSL vulnerability (K44512851)	Nessus	F5 Networks Local Security Checks	2017/2/17	2019/1/4	medium
105341	openSUSE Security Update : openssl (openSUSE-2017-1381)	Nessus	SuSE Local Security Checks	2017/12/18	2021/1/19	medium
105353	SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2017:3343-1)	Nessus	SuSE Local Security Checks	2017/12/18	2021/1/6	medium
90680	Oracle VM VirtualBox < 4.3.36 / 5.0.18 Multiple Vulnerabilities (April 2016 CPU)	Nessus	Misc.	2016/4/22	2019/11/19	medium
96316	Juniper Junos Multiple OpenSSL Vulnerabilities (JSA10759) (SWEET32)	Nessus	Junos Local Security Checks	2017/1/5	2018/8/10	critical
87387	FreeBSD：bind -- 多個弱點 (a8ec4db7-a398-11e5-85e9-14dae9d210b8)	Nessus	FreeBSD Local Security Checks	2015/12/16	2021/1/6	high
92543	Oracle Secure Global Desktop 多個弱點 (2016 年 7 月 CPU)	Nessus	Misc.	2016/7/25	2021/10/25	critical
87236	Ubuntu 14.04 LTS：OpenSSL 弱點 (USN-2830-1)	Nessus	Ubuntu Local Security Checks	2015/12/8	2024/8/27	high
87378	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 最新版本：openssl (SSA:2015-349-04)	Nessus	Slackware Local Security Checks	2015/12/16	2021/1/14	high
88100	Cisco AnyConnect Secure Mobility Client < 3.1.13015.0 / 4.2.x < 4.2.1035.0 多個 OpenSSL 弱點	Nessus	Windows	2016/1/22	2018/7/6	medium
9463	OpenSSL 1.0.2 < 1.0.2e Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	2016/8/5	2019/3/6	medium
503128	Siemens SCALANCE X-200RNA Switch Devices Exposure of Sensitive Information to an Unauthorized Actor (CVE-2015-3193)	Tenable OT Security	Tenable.ot	2025/3/13	2025/3/13	high

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