CVSS: 7.8EPSS: 68%CPEs: 32EXPL: 0CVE-2016-0798
https://notcve.org/view.php?id=CVE-2016-0798
Memory leak in the SRP_VBASE_get_by_user implementation in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g allows remote attackers to cause a denial of service (memory consumption) by providing an invalid username in a connection attempt, related to apps/s_server.c and crypto/srp/srp_vfy.c. Fuga de memoria en la implementación de SRP_VBASE_get_by_user en OpenSSL 1.0.1 en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g permite a atacantes remotos causar una denegación de servicio (consumo de memoria) proporcionando un nombre de usuario no válido en un intento de conexión, relacionada con apps/s_server.c y crypto/srp/srp_vfy.c. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.h • CWE-399: Resource Management Errors •
CVSS: 7.5EPSS: 7%CPEs: 40EXPL: 0CVE-2016-0797 – OpenSSL: BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
https://notcve.org/view.php?id=CVE-2016-0797
Multiple integer overflows in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g allow remote attackers to cause a denial of service (heap memory corruption or NULL pointer dereference) or possibly have unspecified other impact via a long digit string that is mishandled by the (1) BN_dec2bn or (2) BN_hex2bn function, related to crypto/bn/bn.h and crypto/bn/bn_print.c. Múltiples desbordamientos de entero en OpenSSL 1.0.1 en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g permiten a atacantes remotos causar una denegación de servicio (corrupción de memoria dinámica o referencia a puntero NULL) o posiblemente tener otro impacto no especificado a través de una cadena de dígitos de gran tamaño que no es manejada correctamente por la función (1) BN_dec2bn o (2) BN_hex2bn, relacionada con crypto/bn/bn.h y crypto/bn/bn_print.c. An integer overflow flaw, leading to a NULL pointer dereference or a heap-based memory corruption, was found in the way some BIGNUM functions of OpenSSL were implemented. Applications that use these functions with large untrusted input could crash or, potentially, execute arbitrary code. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.h •
CVSS: 10.0EPSS: 39%CPEs: 35EXPL: 0CVE-2016-0799 – OpenSSL: Fix memory issues in BIO_*printf functions
https://notcve.org/view.php?id=CVE-2016-0799
The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842. La función fmtstr en crypto/bio/b_print.c en OpenSSL 1.0.1 en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g calcula incorrectamenteno longitudes de cadena, lo que permite a atacantes remotos causar una denegación de servicio (desbordamiento y lectura fuera de rango) o posiblemente causar otro impacto no especificado a través de una cadena larga de carácteres, como ha quedado demostrado por una gran cantidad de ASN.1 data, una vulnerabilidad diferente a CVE-2016-2842. Several flaws were found in the way BIO_*printf functions were implemented in OpenSSL. Applications which passed large amounts of untrusted data through these functions could crash or potentially execute code with the permissions of the user running such an application. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-03/ • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.1EPSS: 0%CPEs: 40EXPL: 0CVE-2016-0702 – OpenSSL: Side channel attack on modular exponentiation
https://notcve.org/view.php?id=CVE-2016-0702
The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a "CacheBleed" attack. La función MOD_EXP_CTIME_COPY_FROM_PREBUF en crypto/bn/bn_exp.c en OpenSSL 1.0.1 en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g no considera correctamente las veces que se accede al cache-bank durante la exponenciación modular, lo que facilita a usuarios locales descubrir las claves RSA ejecutando una aplicación manipulada en el mismo núcleo de la CPU Intel Sandy Bridge como víctima y aprovechándose de los conflictos del cache-bank, también conocida como un ataque "CacheBleed". A side-channel attack was found that makes use of cache-bank conflicts on the Intel Sandy-Bridge microarchitecture. An attacker who has the ability to control code in a thread running on the same hyper-threaded core as the victim's thread that is performing decryption, could use this flaw to recover RSA private keys. • http://cachebleed.info http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html http://lists.opensuse.org/opensuse- • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.9EPSS: 0%CPEs: 44EXPL: 0CVE-2016-0703 – openssl: Divide-and-conquer session key recovery in SSLv2
https://notcve.org/view.php?id=CVE-2016-0703
The get_client_master_key function in s2_srvr.c in the SSLv2 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 accepts a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher, which allows man-in-the-middle attackers to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800. La función get_client_master_key en s2_srvr.c en la implementación de SSLv2 en OpenSSL en versiones anteriores a 0.9.8zf, 1.0.0 en versiones anteriores a 1.0.0r, 1.0.1 en versiones anteriores a 1.0.1m y 1.0.2 en versiones anteriores a 1.0.2a acepta un valor CLIENT-MASTER-KEY CLEAR-KEY-LENGTH distinto de cero para un cifrado arbitrario, lo que permite a atacantes man-in-the-middle determinar el valor MASTER-KEY y descifrar datos de texto cifrados con TLS aprovechándose de un Bleichenbacher RSA padding oracle, un caso relacionado con CVE-2016-0800. It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.h • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •