Multiple buffer overflows in crypto/srp/srp_lib.c in the SRP implementation in OpenSSL 1.0.1 before 1.0.1i allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an invalid SRP (1) g, (2) A, or (3) B parameter.

According to its self-reported version number, the remote pfSense install is a version prior to 2.1.5 It is, therefore, affected by multiple vulnerabilities.

According to its self-reported version number, the Apache Tomcat server listening on the remote host is 8.0.x prior to 8.0.15. It is, therefore, affected by the following vulnerabilities :

  - A memory double-free error exists in 'd1_both.c' related     to handling DTLS packets that allows denial of service     attacks. (CVE-2014-3505)

  - An unspecified error exists in 'd1_both.c' related to     handling DTLS handshake messages that allows denial of     service attacks due to large amounts of memory being     consumed. (CVE-2014-3506)

  - A memory leak error exists in 'd1_both.c' related to     handling specially crafted DTLS packets that allows     denial of service attacks. (CVE-2014-3507)

  - An error exists in the 'OBJ_obj2txt' function when     various 'X509_name_*' pretty printing functions are     used, which leak process stack data, resulting in an     information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allows denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that allows a man-in-the-middle     attacker to force usage of TLS 1.0 regardless of higher     protocol levels being supported by both the server and     the client. (CVE-2014-3511)

  - Buffer overflow errors exist in 'srp_lib.c' related to     handling Secure Remote Password protocol (SRP)     parameters, which can allow a denial of service or have     other unspecified impact. (CVE-2014-3512)

  - A memory leak issue exists in 'd1_srtp.c' related to     the DTLS SRTP extension handling and specially crafted     handshake messages that can allow denial of service     attacks. (CVE-2014-3513)

  - An error exists related to the way SSL 3.0 handles     padding bytes when decrypting messages encrypted using     block ciphers in cipher block chaining (CBC) mode.
    Man-in-the-middle attackers can decrypt a selected byte     of a cipher text in as few as 256 tries if they are able     to force a victim application to repeatedly send the     same data over newly created SSL 3.0 connections. This     is also known as the 'POODLE' issue. (CVE-2014-3566)

  - A memory leak issue exists in 't1_lib.c' related to     session ticket handling that can allow denial of service     attacks. (CVE-2014-3567)

  - An error exists related to the build configuration     process and the 'no-ssl3' build option that allows     servers and clients to process insecure SSL 3.0     handshake messages. (CVE-2014-3568)

  - A NULL pointer dereference error exists in 't1_lib.c',     related to handling Secure Remote Password protocol     (SRP) ServerHello messages, which allows a malicious     server to crash a client, resulting in a denial of     service. (CVE-2014-5139)

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

According to its self-reported version number, the Apache Tomcat service listening on the remote host is 7.0.x prior to 7.0.57. It is, therefore, affected by the following vulnerabilities :

  - A memory double-free error exists in 'd1_both.c' related     to handling DTLS packets that allows denial of service     attacks. (CVE-2014-3505)

  - An unspecified error exists in 'd1_both.c' related to     handling DTLS handshake messages that allows denial of     service attacks due to large amounts of memory being     consumed. (CVE-2014-3506)

  - A memory leak error exists in 'd1_both.c' related to     handling specially crafted DTLS packets that allows     denial of service attacks. (CVE-2014-3507)

  - An error exists in the 'OBJ_obj2txt' function when     various 'X509_name_*' pretty printing functions are     used, which leak process stack data, resulting in an     information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allows denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that allows a man-in-the-middle     attacker to force usage of TLS 1.0 regardless of higher     protocol levels being supported by both the server and     the client. (CVE-2014-3511)

  - Buffer overflow errors exist in 'srp_lib.c' related to     handling Secure Remote Password protocol (SRP)     parameters, which can allow a denial of service or have     other unspecified impact. (CVE-2014-3512)

  - A memory leak issue exists in 'd1_srtp.c' related to     the DTLS SRTP extension handling and specially crafted     handshake messages that can allow denial of service     attacks. (CVE-2014-3513)

  - An error exists related to the way SSL 3.0 handles     padding bytes when decrypting messages encrypted using     block ciphers in cipher block chaining (CBC) mode.
    Man-in-the-middle attackers can decrypt a selected byte     of a cipher text in as few as 256 tries if they are able     to force a victim application to repeatedly send the     same data over newly created SSL 3.0 connections. This     is also known as the 'POODLE' issue. (CVE-2014-3566)

  - A memory leak issue exists in 't1_lib.c' related to     session ticket handling that can allow denial of service     attacks. (CVE-2014-3567)

  - An error exists related to the build configuration     process and the 'no-ssl3' build option that allows     servers and clients to process insecure SSL 3.0     handshake messages. (CVE-2014-3568)

  - A NULL pointer dereference error exists in 't1_lib.c',     related to handling Secure Remote Password protocol     (SRP) ServerHello messages, which allows a malicious     server to crash a client, resulting in a denial of     service. (CVE-2014-5139)

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

According to its self-reported version number, the Apache Tomcat service listening on the remote host is 6.0.x prior to 6.0.43. It is, therefore, affected by the following vulnerabilities :

  - An error exists in the function 'ssl3_read_bytes' that     can allow data to be injected into other sessions or     allow denial of service attacks. Note that this issue is     exploitable only if 'SSL_MODE_RELEASE_BUFFERS' is     enabled. (CVE-2010-5298)

  - A buffer overflow error exists related to invalid DTLS     fragment handling that can lead to the execution of     arbitrary code. Note that this issue only affects     OpenSSL when used as a DTLS client or server.
    (CVE-2014-0195)

  - An error exists in the function 'do_ssl3_write' that     can allow a NULL pointer to be dereferenced leading to     denial of service attacks. Note that this issue is     exploitable only if 'SSL_MODE_RELEASE_BUFFERS' is     enabled. (CVE-2014-0198)

  - An error exists related to DTLS handshake handling that     can lead to denial of service attacks. Note that this     issue only affects OpenSSL when used as a DTLS client.
    (CVE-2014-0221)

  - An unspecified error exists in how ChangeCipherSpec     messages are processed that can allow an attacker to     cause usage of weak keying material, leading to     simplified man-in-the-middle attacks. (CVE-2014-0224)

  - An unspecified error exists related to anonymous ECDH     cipher suites that can allow denial of service attacks.
    Note that this issue only affects OpenSSL TLS clients.
    (CVE-2014-3470)

  - A memory double-free error exists in 'd1_both.c' related     to handling DTLS packets that allows denial of service     attacks. (CVE-2014-3505)

  - An unspecified error exists in 'd1_both.c' related to     handling DTLS handshake messages that allows denial of     service attacks due to large amounts of memory being     consumed. (CVE-2014-3506)

  - A memory leak error exists in 'd1_both.c' related to     handling specially crafted DTLS packets that allows     denial of service attacks. (CVE-2014-3507)

  - An error exists in the 'OBJ_obj2txt' function when     various 'X509_name_*' pretty printing functions are     used, which leak process stack data, resulting in an     information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allows denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that allows a man-in-the-middle     attacker to force usage of TLS 1.0 regardless of higher     protocol levels being supported by both the server and     the client. (CVE-2014-3511)

  - Buffer overflow errors exist in 'srp_lib.c' related to     handling Secure Remote Password protocol (SRP)     parameters, which can allow a denial of service or have     other unspecified impact. (CVE-2014-3512)

  - A memory leak issue exists in 'd1_srtp.c' related to     the DTLS SRTP extension handling and specially crafted     handshake messages that can allow denial of service     attacks. (CVE-2014-3513)

  - An error exists related to the way SSL 3.0 handles     padding bytes when decrypting messages encrypted using     block ciphers in cipher block chaining (CBC) mode.
    Man-in-the-middle attackers can decrypt a selected byte     of a cipher text in as few as 256 tries if they are able     to force a victim application to repeatedly send the     same data over newly created SSL 3.0 connections. This     is also known as the 'POODLE' issue. (CVE-2014-3566)

  - A memory leak issue exists in 't1_lib.c' related to     session ticket handling that can allow denial of service     attacks. (CVE-2014-3567)

  - An error exists related to the build configuration     process and the 'no-ssl3' build option that allows     servers and clients to process insecure SSL 3.0     handshake messages. (CVE-2014-3568)

  - A NULL pointer dereference error exists in 't1_lib.c',     related to handling Secure Remote Password protocol     (SRP) ServerHello messages, which allows a malicious     server to crash a client, resulting in a denial of     service. (CVE-2014-5139)

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

The remote Solaris system is missing necessary patches to address security updates :

  - 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)

  - Memory leak 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 (memory consumption) via zero-length     DTLS fragments that trigger improper handling of the     return value of a certain insert function.
    (CVE-2014-3507)

  - Race condition in the ssl_parse_serverhello_tlsext     function in t1_lib.c in OpenSSL 1.0.0 before 1.0.0n and     1.0.1 before 1.0.1i, when multithreading and session     resumption are used, allows remote SSL servers to cause     a denial of service (memory overwrite and client     application crash) or possibly have unspecified other     impact by sending Elliptic Curve (EC) Supported Point     Formats Extension data. (CVE-2014-3509)

  - 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)

  - Multiple buffer overflows in crypto/srp/srp_lib.c in the     SRP implementation in OpenSSL 1.0.1 before 1.0.1i allow     remote attackers to cause a denial of service     (application crash) or possibly have unspecified other     impact via an invalid SRP (1) g, (2) A, or (3) B     parameter. (CVE-2014-3512)

  - The ssl_set_client_disabled function in t1_lib.c in     OpenSSL 1.0.1 before 1.0.1i allows remote SSL servers to     cause a denial of service (NULL pointer dereference and     client application crash) via a ServerHello message that     includes an SRP ciphersuite without the required     negotiation of that ciphersuite with the client.
    (CVE-2014-5139)

The remote host is affected by the vulnerability described in GLSA-201412-39 (OpenSSL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenSSL. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker may be able to cause a Denial of Service condition,       perform Man-in-the-Middle attacks, obtain sensitive information, or       bypass security restrictions.
  Workaround :

    There is no known workaround at this time.

According to its self-reported version number, the remote Junos device is affected by multiple vulnerabilities in the implementation of OpenSSL :

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - An error exists related to handling fragmented     'ClientHello' messages that allows a man-in-the-middle     attacker to force usage of TLS 1.0 regardless of higher     protocol levels being supported by both the server and     the client. (CVE-2014-3511)

  - A buffer overflow error exists related to handling     Secure Remote Password protocol (SRP) parameters having     unspecified impact. (CVE-2014-3512)

  - A NULL pointer dereference error exists related to     handling Secure Remote Password protocol (SRP) that     allows a malicious server to crash a client, resulting     in a denial of service. (CVE-2014-5139)

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

A flaw was discovered in the way OpenSSL handled DTLS packets. A remote attacker could use this flaw to cause a DTLS server or client using OpenSSL to crash or use excessive amounts of memory.

Multiple buffer overflows in crypto/srp/srp_lib.c in the SRP implementation in OpenSSL 1.0.1 before 1.0.1i allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an invalid SRP (1) g, (2) A, or (3) B parameter.

A flaw was found in the way OpenSSL handled fragmented handshake packets. A man-in-the-middle attacker could use this flaw to force a TLS/SSL server using OpenSSL to use TLS 1.0, even if both the client and the server supported newer protocol versions.

A NULL pointer dereference flaw was found in the way OpenSSL performed a handshake when using the anonymous Diffie-Hellman (DH) key exchange.
A malicious server could cause a DTLS client using OpenSSL to crash if that client had anonymous DH cipher suites enabled.

It was discovered that the OBJ_obj2txt() function could fail to properly NUL-terminate its output. This could possibly cause an application using OpenSSL functions to format fields of X.509 certificates to disclose portions of its memory.

A race condition was found in the way OpenSSL handled ServerHello messages with an included Supported EC Point Format extension. A malicious server could possibly use this flaw to cause a multi-threaded TLS/SSL client using OpenSSL to write into freed memory, causing the client to crash or execute arbitrary code.

The ssl_set_client_disabled function in t1_lib.c in OpenSSL 1.0.1 before 1.0.1i allows remote SSL servers to cause a denial of service (NULL pointer dereference and client application crash) via a ServerHello message that includes an SRP ciphersuite without the required negotiation of that ciphersuite with the client.

The WinSCP program installed on the remote host is version 4.3.8, 4.3.9, 4.4.0, or 5.x prior to 5.5.5. It therefore contains a bundled version of OpenSSL prior to 1.0.1i which is affected by the following vulnerabilities :

  - A memory double-free error exists related to handling     DTLS packets that allows denial of service attacks.
    (CVE-2014-3505)

  - An unspecified error exists related to handling DTLS     handshake messages that allows denial of service attacks     due to large amounts of memory being consumed.
    (CVE-2014-3506)

  - A memory leak error exists related to handling     specially crafted DTLS packets that allows denial of     service attacks. (CVE-2014-3507)

  - An error exists related to 'OBJ_obj2txt' and the pretty     printing 'X509_name_*' functions which leak stack data,     resulting in an information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allow denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that allows a man-in-the-middle     attacker to force usage of TLS 1.0 regardless of higher     protocol levels being supported by both the server and     the client. (CVE-2014-3511)

  - A buffer overflow error exists related to handling     Secure Remote Password protocol (SRP) parameters having     unspecified impact. (CVE-2014-3512)

  - A NULL pointer dereference error exists related to     handling Secure Remote Password protocol (SRP) that     allows a malicious server to crash a client, resulting     in a denial of service. (CVE-2014-5139)

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

  - A memory double-free error exists related to handling     DTLS packets that allows denial of service attacks.
    (CVE-2014-3505)

  - An unspecified error exists related to handling DTLS     handshake messages that allows denial of service attacks     due to large amounts of memory being consumed.
    (CVE-2014-3506)

  - A memory leak error exists related to handling     specially crafted DTLS packets that allows denial of     service attacks. (CVE-2014-3507)

  - An error exists related to 'OBJ_obj2txt' and the pretty     printing 'X509_name_*' functions which leak stack data,     resulting in an information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allow denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that could allow a     man-in-the-middle attacker to force usage of TLS 1.0     regardless of higher protocol levels being supported by     both the server and the client. (CVE-2014-3511)

  - A buffer overflow error exists related to handling     Secure Remote Password protocol (SRP) parameters having     unspecified impact. (CVE-2014-3512)

  - A NULL pointer dereference error exists related to     handling Secure Remote Password protocol (SRP) that     allows a malicious server to crash a client, resulting     in a denial of service. (CVE-2014-5139)

This openssl update fixes the following security issues :

  - openssl 1.0.1i

  - Information leak in pretty printing functions     (CVE-2014-3508)

  - Crash with SRP ciphersuite in Server Hello message     (CVE-2014-5139)

  - Race condition in ssl_parse_serverhello_tlsext     (CVE-2014-3509)

  - Double Free when processing DTLS packets (CVE-2014-3505)

  - DTLS memory exhaustion (CVE-2014-3506)

  - DTLS memory leak from zero-length fragments     (CVE-2014-3507)

  - OpenSSL DTLS anonymous EC(DH) denial of service     (CVE-2014-3510)

  - OpenSSL TLS protocol downgrade attack (CVE-2014-3511)

  - SRP buffer overrun (CVE-2014-3512)

OpenSSL before 0.9.8zb, 1.0.0n, or 1.0.1i are unpatched for the following vulnerabilities:

  - A memory double-free error exists related to handling DTLS packets that allows denial of service attacks. (CVE-2014-3505)

  - An unspecified error exists related to handling DTLS handshake messages that allows denial of service attacks due to large amounts of memory being consumed. (CVE-2014-3506)

  - A memory leak error exists related to handling specially crafted DTLS packets that allows denial of service attacks. (CVE-2014-3507)

  - An error exists related to 'OBJ_obj2txt' and the pretty printing 'X509_name_*' functions which leak stack data, resulting in an information disclosure. (CVE-2014-3508)

  - A null pointer dereference error exists related to handling anonymous ECDH cipher suites and crafted handshake messages that allow denial of service attacks against clients. (CVE-2014-3510)

Additionally, several vulnerabilities specific to version 1.0.1 prior to 1.0.1i have been disclosed:

  - Race condition in ssl_parse_serverhello_tlsext that can cause information disclosure in applications utilizing the OpenSSL library (CVE-2014-3509)

  - An SRP buffer overrun was found that can be triggered by sending invalid SRP parameters (CVE-2014-3512)

  - A flaw in the OpenSSL SSL/TLS server code can cause the server to negotiate TLS 1.0, even when higher protocol versions are supported, when the ClientHello message is badly fragmented (CVE-2014-3511)

The version of stunnel installed on the remote host is prior to version 5.03. It is, therefore, affected by the following vulnerabilities in the bundled OpenSSL library :

  - A memory double-free error exists related to handling     DTLS packets that allows denial of service attacks.
    (CVE-2014-3505)

  - An unspecified error exists related to handling DTLS     handshake messages that allows denial of service attacks     due to large amounts of memory being consumed.
    (CVE-2014-3506)

  - A memory leak error exists related to handling     specially crafted DTLS packets that allows denial of     service attacks. (CVE-2014-3507)

  - An error exists related to 'OBJ_obj2txt' and the pretty     printing 'X509_name_*' functions which leak stack data,     resulting in an information disclosure. (CVE-2014-3508)

  - An error exists related to 'ec point format extension'     handling and multithreaded clients that allows freed     memory to be overwritten during a resumed session.
    (CVE-2014-3509)

  - A NULL pointer dereference error exists related to     handling anonymous ECDH cipher suites and crafted     handshake messages that allow denial of service attacks     against clients. (CVE-2014-3510)

  - An error exists related to handling fragmented     'ClientHello' messages that could allow a     man-in-the-middle attacker to force usage of TLS 1.0     regardless of higher protocol levels being supported by     both the server and the client. (CVE-2014-3511)

  - A buffer overflow error exists related to handling     Secure Remote Password protocol (SRP) parameters having     unspecified impact. (CVE-2014-3512)

  - A NULL pointer dereference error exists related to     handling Secure Remote Password protocol (SRP) that     allows a malicious server to crash a client, resulting     in a denial of service. (CVE-2014-5139

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

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

The version of OpenSSL installed on the remote host is prior to 1.0.1i. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.1i advisory.

  - The ssl_set_client_disabled function in t1_lib.c in OpenSSL 1.0.1 before 1.0.1i allows remote SSL servers     to cause a denial of service (NULL pointer dereference and client application crash) via a ServerHello     message that includes an SRP ciphersuite without the required negotiation of that ciphersuite with the     client. (CVE-2014-5139)

  - Multiple buffer overflows in crypto/srp/srp_lib.c in the SRP implementation in OpenSSL 1.0.1 before 1.0.1i     allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other     impact via an invalid SRP (1) g, (2) A, or (3) B parameter. (CVE-2014-3512)

  - The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle     attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication     between a client and server that both support later TLS versions, related to a protocol downgrade issue.
    (CVE-2014-3511)

  - 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)

  - Race condition in the ssl_parse_serverhello_tlsext function in t1_lib.c in OpenSSL 1.0.0 before 1.0.0n and     1.0.1 before 1.0.1i, when multithreading and session resumption are used, allows remote SSL servers to     cause a denial of service (memory overwrite and client application crash) or possibly have unspecified     other impact by sending Elliptic Curve (EC) Supported Point Formats Extension data. (CVE-2014-3509)

  - 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)

  - Memory leak 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 (memory consumption) via     zero-length DTLS fragments that trigger improper handling of the return value of a certain insert     function. (CVE-2014-3507)

  - 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)

  - 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)

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

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2308-1 advisory.

    Adam Langley and Wan-Teh Chang discovered that OpenSSL incorrectly handled certain DTLS packets. A remote     attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2014-3505)

    Adam Langley discovered that OpenSSL incorrectly handled memory when processing DTLS handshake messages. A     remote attacker could use this issue to cause OpenSSL to consume memory, resulting in a denial of service.
    (CVE-2014-3506)

    Adam Langley discovered that OpenSSL incorrectly handled memory when processing DTLS fragments. A remote     attacker could use this issue to cause OpenSSL to leak memory, resulting in a denial of service. This     issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3507)

    Ivan Fratric discovered that OpenSSL incorrectly leaked information in the pretty printing functions. When     OpenSSL is used with certain applications, an attacker may use this issue to possibly gain access to     sensitive information. (CVE-2014-3508)

    Gabor Tyukasz discovered that OpenSSL contained a race condition when processing serverhello messages. A     malicious server could use this issue to cause clients to crash, resulting in a denial of service. This     issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3509)

    Felix Grbert discovered that OpenSSL incorrectly handled certain DTLS handshake messages. A malicious     server could use this issue to cause clients to crash, resulting in a denial of service. (CVE-2014-3510)

    David Benjamin and Adam Langley discovered that OpenSSL incorrectly handled fragmented ClientHello     messages. If a remote attacker were able to perform a machine-in-the-middle attack, this flaw could be     used to force a protocol downgrade to TLS 1.0. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04     LTS. (CVE-2014-3511)

    Sean Devlin and Watson Ladd discovered that OpenSSL incorrectly handled certain SRP parameters. A remote     attacker could use this with applications that use SRP to cause a denial of service, or possibly execute     arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3512)

    Joonas Kuorilehto and Riku Hietamki discovered that OpenSSL incorrectly handled certain Server Hello     messages that specify an SRP ciphersuite. A malicious server could use this issue to cause clients to     crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
    (CVE-2014-5139)

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

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

The OpenSSL Project reports :

A flaw in OBJ_obj2txt may cause pretty printing functions such as X509_name_oneline, X509_name_print_ex et al. to leak some information from the stack. [CVE-2014-3508]

The issue affects OpenSSL clients and allows a malicious server to crash the client with a NULL pointer dereference (read) by specifying an SRP ciphersuite even though it was not properly negotiated with the client. [CVE-2014-5139]

If a multithreaded client connects to a malicious server using a resumed session and the server sends an ec point format extension it could write up to 255 bytes to freed memory. [CVE-2014-3509]

An attacker can force an error condition which causes openssl to crash whilst processing DTLS packets due to memory being freed twice. This can be exploited through a Denial of Service attack. [CVE-2014-3505]

An attacker can force openssl to consume large amounts of memory whilst processing DTLS handshake messages. This can be exploited through a Denial of Service attack. [CVE-2014-3506]

By sending carefully crafted DTLS packets an attacker could cause openssl to leak memory. This can be exploited through a Denial of Service attack. [CVE-2014-3507]

OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject to a denial of service attack. A malicious server can crash the client with a NULL pointer dereference (read) by specifying an anonymous (EC)DH ciphersuite and sending carefully crafted handshake messages. [CVE-2014-3510]

A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate TLS 1.0 instead of higher protocol versions when the ClientHello message is badly fragmented. This allows a man-in-the-middle attacker to force a downgrade to TLS 1.0 even if both the server and the client support a higher protocol version, by modifying the client's TLS records. [CVE-2014-3511]

A malicious client or server can send invalid SRP parameters and overrun an internal buffer. Only applications which are explicitly set up for SRP use are affected. [CVE-2014-3512]

Multiple vulnerabilities have been identified in OpenSSL, a Secure Sockets Layer toolkit, that may result in denial of service (application crash, large memory consumption), information leak, protocol downgrade. Additionally, a buffer overrun affecting only applications explicitly set up for SRP has been fixed (CVE-2014-3512 ).

Detailed descriptions of the vulnerabilities can be found at:
www.openssl.org/news/secadv/20140806.txt

It's important that you upgrade the libssl1.0.0 package and not just the openssl package.

All applications linked to openssl need to be restarted. You can use the 'checkrestart' tool from the debian-goodies package to detect affected programs. Alternatively, you may reboot your system.

ID	Name	Product	Family	Severity
108516	pfSense < 2.1.5 Multiple Vulnerabilities ( SA-14_14 )	Nessus	CGI abuses	high
81651	Apache Tomcat 8.0.x < 8.0.15 Multiple Vulnerabilities (POODLE)	Nessus	Web Servers	high
81650	Apache Tomcat 7.0.x < 7.0.57 Multiple Vulnerabilities (POODLE)	Nessus	Web Servers	high
81649	Apache Tomcat 6.0.x < 6.0.43 Multiple Vulnerabilities (POODLE)	Nessus	Web Servers	high
80722	Oracle Solaris Third-Party Patch Update : openssl (cve_2014_3505_denial_of)	Nessus	Solaris Local Security Checks	high
80244	GLSA-201412-39 : OpenSSL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
78420	Juniper Junos Multiple OpenSSL Vulnerabilities (JSA10649)	Nessus	Junos Local Security Checks	high
78334	Amazon Linux AMI : openssl (ALAS-2014-391)	Nessus	Amazon Linux Local Security Checks	high
78078	WinSCP 5.x < 5.5.5 Multiple Vulnerabilities	Nessus	Windows	high
77603	AIX OpenSSL Advisory : openssl_advisory10.asc	Nessus	AIX Local Security Checks	high
77317	openSUSE Security Update : openssl (openSUSE-SU-2014:1052-1)	Nessus	SuSE Local Security Checks	high
8354	OpenSSL < 0.9.8zb / < 1.0.0n / < 1.0.1i Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	medium
77182	stunnel < 5.03 OpenSSL Multiple Vulnerabilities	Nessus	Windows	high
77091	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : openssl (SSA:2014-220-01)	Nessus	Slackware Local Security Checks	high
77088	OpenSSL 1.0.1 < 1.0.1i Multiple Vulnerabilities	Nessus	Web Servers	high
77085	Ubuntu 14.04 LTS : OpenSSL vulnerabilities (USN-2308-1)	Nessus	Ubuntu Local Security Checks	high
77036	FreeBSD : OpenSSL -- multiple vulnerabilities (8aff07eb-1dbd-11e4-b6ba-3c970e169bc2)	Nessus	FreeBSD Local Security Checks	high
77035	Debian DSA-2998-1 : openssl - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2014-3512

medium

Tenable Plugins

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