CVSS: 7.5EPSS: 6%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: 36%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: 10.0EPSS: 6%CPEs: 61EXPL: 0CVE-2016-0705 – OpenSSL: Double-free in DSA code
https://notcve.org/view.php?id=CVE-2016-0705
Double free vulnerability in the dsa_priv_decode function in crypto/dsa/dsa_ameth.c 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 corruption) or possibly have unspecified other impact via a malformed DSA private key. Vulnerabilidad de liberación doble en la función dsa_priv_decode en crypto/dsa/dsa_ameth.c 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 (corrupción de memoria) o posiblemente tener otro impacto no especificado a través de una clave DSA privada malformada. A double-free flaw was found in the way OpenSSL parsed certain malformed DSA (Digital Signature Algorithm) private keys. An attacker could create specially crafted DSA private keys that, when processed by an application compiled against OpenSSL, could cause the application to crash. • 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/ •
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: 94%CPEs: 34EXPL: 0CVE-2016-0800 – SSL/TLS: Cross-protocol attack on TLS using SSLv2 (DROWN)
https://notcve.org/view.php?id=CVE-2016-0800
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack. El protocolo SSLv2, como se utiliza en OpenSSL en versiones anteriores a 1.0.1s y 1.0.2 en versiones anteriores a 1.0.2g y otros productos requiere un servidor para enviar un mensaje ServerVerify antes de establecer que un cliente posee ciertos datos RSA en texto plano, lo que facilita a atacantes remotos descifrar datos de texto cifrados con TLS aprovechándose de un Bleichenbacher RSA padding oracle, también conocida como ataque "DROWN". A padding oracle flaw was found in the Secure Sockets Layer version 2.0 (SSLv2) protocol. An attacker could potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections. This cross-protocol attack is publicly referred to as DROWN. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10722 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: • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-310: Cryptographic Issues •