CVSS: 5.1EPSS: 0%CPEs: 30EXPL: 1CVE-2015-2721 – NSS: incorrectly permited skipping of ServerKeyExchange (MFSA 2015-71)
https://notcve.org/view.php?id=CVE-2015-2721
Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue. Mozilla Network Security Services (NSS) anterior a 3.19, utilizado en Mozilla Firefox anterior a 39.0, Firefox ESR 31.x anterior a 31.8 y 38.x anterior a 38.1, Thunderbird anterior a 38.1, y otros productos, no determina correctamente las transiciones de estado para la máquina de estados TLS, lo que permite a atacantes man-in-the-middle derrotar los mecanismos de protección criptográfica mediante el bloqueo de mensajes, tal y como fue demostrado mediante la eliminación de una propiedad de confidencialidad adelantada mediante el bloqueo de un mensaje ServerKeyExchange, también conocido como un problema de 'SMACK SKIP-TLS' . It was found that NSS permitted skipping of the ServerKeyExchange packet during a handshake involving ECDHE (Elliptic Curve Diffie-Hellman key Exchange). A remote attacker could use this flaw to bypass the forward-secrecy of a TLS/SSL connection. • http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html http://rhn.redhat.com/errata/RHSA-2015-1185.html http://rhn.redhat.com/errata/RHSA-2015-1664.html http://www.debian.org&#x • CWE-310: Cryptographic Issues CWE-358: Improperly Implemented Security Check for Standard •
CVSS: 4.3EPSS: 97%CPEs: 42EXPL: 0CVE-2015-4000 – LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks
https://notcve.org/view.php?id=CVE-2015-4000
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. El protocolo TLS 1.2 y anteriores, cuando una suite de cifrado DHE_EXPORT está habilitada en un servidor pero no en un cliente, no transporta una elección DHE_EXPORT, lo que permite a atacantes man-in-the-middle realizar ataques de degradación del cifrado mediante la rescritura de un ClientHello con DHE remplazado por DHE_EXPORT y posteriormente la rescritura de un ServerHello con DHE_EXPORT remplazado por DHE, también conocido como el problema 'Logjam'. A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange (for both export and non-export grade cipher suites). An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation. This can lead to a passive man-in-the-middle attack in which the attacker is able to decrypt all traffic. • http://aix.software.ibm.com/aix/efixes/security/sendmail_advisory2.asc http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04876402 http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04949778 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10681 http://kb.juniper.net/InfoC • CWE-310: Cryptographic Issues CWE-327: Use of a Broken or Risky Cryptographic Algorithm •
CVSS: 7.5EPSS: 2%CPEs: 7EXPL: 4CVE-2014-1569
https://notcve.org/view.php?id=CVE-2014-1569
The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00. La función definite_length_decoder en lib/util/quickder.c en Mozilla Network Security Services (NSS) anterior a 3.16.2.4 y 3.17.x anterior a 3.17.3 no asegura que la codfifcación DER de una longitud ASN.1 está formada correctamente, lo que permite a atacantes remotos realizar ataques del trafico de datos mediante el uso de una secuencia de bytes larga para una codificación, tal y como fue demostrado por el mal manejo de la función SEC_QuickDERDecodeItem de la codificación de longitud arbitraria de 0x00. • http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00036.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.html http://www.debian.org/security/2015/dsa-3186 http://www.intelsecurity.com/resources/wp-berserk-analysis-part-1.pdf http://www •
CVSS: 7.5EPSS: 3%CPEs: 233EXPL: 0CVE-2014-1568 – nss: RSA PKCS#1 signature verification forgery flaw (MFSA 2014-73)
https://notcve.org/view.php?id=CVE-2014-1568
Mozilla Network Security Services (NSS) before 3.16.2.1, 3.16.x before 3.16.5, and 3.17.x before 3.17.1, as used in Mozilla Firefox before 32.0.3, Mozilla Firefox ESR 24.x before 24.8.1 and 31.x before 31.1.1, Mozilla Thunderbird before 24.8.1 and 31.x before 31.1.2, Mozilla SeaMonkey before 2.29.1, Google Chrome before 37.0.2062.124 on Windows and OS X, and Google Chrome OS before 37.0.2062.120, does not properly parse ASN.1 values in X.509 certificates, which makes it easier for remote attackers to spoof RSA signatures via a crafted certificate, aka a "signature malleability" issue. Mozilla Network Security Services (NSS) anterior a 3.16.2.1, 3.16.x anterior a 3.16.5, y 3.17.x anterior a 3.17.1, utilizado en Mozilla Firefox anterior a 32.0.3, Mozilla Firefox ESR 24.x anterior a 24.8.1 y 31.x anterior a 31.1.1, Mozilla Thunderbird anterior a 24.8.1 y 31.x anterior a 31.1.2, Mozilla SeaMonkey anterior a 2.29.1, Google Chrome anterior a 37.0.2062.124 en Windows y OS X, y Google Chrome OS anterior a 37.0.2062.120, no analiza debidamente los valores ASN.1 en los certificados X.509, lo que facilita a atacantes remotos falsificar las firmas RSA a través de un certificado manipulado, también conocido como un problema de 'maleabilidad de firmas'. A flaw was found in the way NSS parsed ASN.1 (Abstract Syntax Notation One) input from certain RSA signatures. A remote attacker could use this flaw to forge RSA certificates by providing a specially crafted signature to an application using NSS. • http://googlechromereleases.blogspot.com/2014/09/stable-channel-update-for-chrome-os_24.html http://googlechromereleases.blogspot.com/2014/09/stable-channel-update_24.html http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10698 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00036.html http://lists.opensuse.org/opensuse-security-announce/2014-09&# • CWE-310: Cryptographic Issues CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 10.0EPSS: 10%CPEs: 71EXPL: 0CVE-2014-1544 – nss: Race-condition in certificate verification can lead to Remote code execution (MFSA 2014-63)
https://notcve.org/view.php?id=CVE-2014-1544
Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to execute arbitrary code via vectors that trigger certain improper removal of an NSSCertificate structure from a trust domain. Vulnerabilidad de uso después de liberación en la función CERT_DestroyCertificate en libnss3.so en Mozilla Network Security Services (NSS) 3.x, utilizado en Firefox anterior a 31.0, Firefox ESR 24.x anterior a 24.7 y Thunderbird anterior a 24.7, permite a atacantes remotos ejecutar código arbitrario a través de vectores que provocan cierta eliminación indebida de una estructura NSSCertificate de un dominio de confianza. A race condition was found in the way NSS verified certain certificates. A remote attacker could use this flaw to crash an application using NSS or, possibly, execute arbitrary code with the privileges of the user running that application. • http://secunia.com/advisories/59591 http://secunia.com/advisories/59719 http://secunia.com/advisories/59760 http://secunia.com/advisories/60083 http://secunia.com/advisories/60486 http://secunia.com/advisories/60621 http://secunia.com/advisories/60628 http://www.debian.org/security/2014/dsa-2986 http://www.debian.org/security/2014/dsa-2996 http://www.mozilla.org/security/announce/2014/mfsa2014-63.html http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htm • CWE-416: Use After Free •