CVSS: 6.5EPSS: 8%CPEs: 10EXPL: 1CVE-2015-1793 – OpenSSL - Alternative Chains Certificate Forgery
https://notcve.org/view.php?id=CVE-2015-1793
The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate. La función de verificación de certificado X509 en crypto/x509/x509_vfy.c en OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, y 1.0.2c no procesa correctamente los valores cA de restricción básica del X.509 durante la identificación de cadenas de certificado alternativo, lo que permite a atacantes remotos suplantar una función de autoridad de certificación y propiciar verificaciones de certificado involuntarias a través de un leaf certificate válido. • https://www.exploit-db.com/exploits/38640 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://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694 http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html http://marc.info/?l=bugtraq&m=143880121627664&w=2 http • CWE-254: 7PK - Security Features CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 4.3EPSS: 12%CPEs: 2EXPL: 0CVE-2015-3216 – openssl: Crash in ssleay_rand_bytes due to locking regression
https://notcve.org/view.php?id=CVE-2015-3216
Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay_rand_bytes function in OpenSSL, as distributed in openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux (RHEL) 7 and other products, allows remote attackers to cause a denial of service (application crash) by establishing many TLS sessions to a multithreaded server, leading to use of a negative value for a certain length field. Condición de carrera en cierto parche Red Hat patch a la implementación PRNG lock en la función ssleay_rand_bytes en OpenSSL, distribuido en openssl-1.0.1e-25.el7 en Red Hat Enterprise Linux (RHEL) 7 y otros productos, permite a atacantes remotos causar una denegación de servicio (caída de aplicación) mediante el establecimiento de muchas sesiones TLS en un servidor de múltiples hilos, conduciendo al uso de un valor negativo para cierto campo de longitud. A regression was found in the ssleay_rand_bytes() function in the versions of OpenSSL shipped with Red Hat Enterprise Linux 6 and 7. This regression could cause a multi-threaded application to crash. • http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html http://rhn.redhat.com/errata/RHSA-2015-1115.html http://rhn.redhat.com/errata/RHSA-2016-2957.html http://www.securityfocus. • CWE-189: Numeric Errors CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.5EPSS: 29%CPEs: 46EXPL: 0CVE-2015-1789 – OpenSSL: out-of-bounds read in X509_cmp_time
https://notcve.org/view.php?id=CVE-2015-1789
The X509_cmp_time function in crypto/x509/x509_vfy.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted length field in ASN1_TIME data, as demonstrated by an attack against a server that supports client authentication with a custom verification callback. La función X509_cmp_time en crypto/x509/x509_vfy.c en OpenSSL anterior a 0.9.8zg, 1.0.0 anterior a 1.0.0s, 1.0.1 anterior a 1.0.1n, y 1.0.2 anterior a 1.0.2b permite a atacantes remotos causar una denegación de servicio (lectura fuera de rango y caída de aplicación) a través de un campo de longitud manipulado en datos ASN1_TIME, tal y como fue demostrado mediante un ataque sobre un servidor que soporta la autenticación de clientes con una rellamada de verificación personalizada. An out-of-bounds read flaw was found in the X509_cmp_time() function of OpenSSL, which is used to test the expiry dates of SSL/TLS certificates. An attacker could possibly use a specially crafted SSL/TLS certificate or CRL (Certificate Revocation List), which when parsed by an application would cause that application to crash. • http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10733 http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160436.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160647.html http& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 5.0EPSS: 43%CPEs: 45EXPL: 0CVE-2015-1790 – OpenSSL: PKCS7 crash with missing EnvelopedContent
https://notcve.org/view.php?id=CVE-2015-1790
The PKCS7_dataDecodefunction in crypto/pkcs7/pk7_doit.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a PKCS#7 blob that uses ASN.1 encoding and lacks inner EncryptedContent data. La función PKCS7_dataDecode en crypto/pkcs7/pk7_doit.c en OpenSSL anterior a 0.9.8zg, 1.0.0 anterior a 1.0.0s, 1.0.1 anterior a 1.0.1n, y 1.0.2 anterior a 1.0.2b permite a atacantes remotos causar una denegación de servicio (referencia a puntero nulo y caída de aplicación) a través de un blob PKCS#7 que utiliza la codificación ASN.1 y al que le faltan datos EncryptedContent internos. A NULL pointer dereference was found in the way OpenSSL handled certain PKCS#7 inputs. An attacker able to make an application using OpenSSL verify, decrypt, or parse a specially crafted PKCS#7 input could cause that application to crash. TLS/SSL clients and servers using OpenSSL were not affected by this flaw. • http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10733 http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160436.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160647.html http& •
CVSS: 4.3EPSS: 56%CPEs: 45EXPL: 0CVE-2015-1788
https://notcve.org/view.php?id=CVE-2015-1788
The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication. La función BN_GF2m_mod_inv en crypto/bn/bn_gf2m.c en OpenSSL anterior a 0.9.8s, 1.0.0 anterior a 1.0.0e, 1.0.1 anterior a 1.0.1n, y 1.0.2 anterior a 1.0.2b no maneja correctamente las estructuras ECParameters en las cuales la curva está por un campo polinomio binario malformado, lo que permite a atacantes remotos causar una denegación de servicio (bucle infinito) a través de una sesión que utiliza un algoritmo Elliptic Curve, tal y como fue demostrado mediante un ataque sobre un servidor que soporta la autenticación de clientes. • http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694 http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce&#x • CWE-399: Resource Management Errors •