CVE-2017-5715 – Multiple CPUs - 'Spectre' Information Disclosure
https://notcve.org/view.php?id=CVE-2017-5715
Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis. Los sistemas con microprocesadores con ejecución especulativa y predicción indirecta de ramas podrían permitir la revelación no autorizada de información al atacante con acceso de usuario local mediante un análisis de un canal lateral. An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5715 triggers the speculative execution by utilizing branch target injection. • https://www.exploit-db.com/exploits/43427 https://github.com/GalloLuigi/Analisi-CVE-2017-5715 http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html http://lists.opensuse.org/opensuse& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •
CVE-2017-15906 – openssh: Improper write operations in readonly mode allow for zero-length file creation
https://notcve.org/view.php?id=CVE-2017-15906
The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files. La función process_open en sftp-server.c en OpenSSH, en versiones anteriores a la 7.6, no evita correctamente las operaciones de escritura en el modo readonly, lo que permite que los atacantes creen archivos de longitud cero. • http://www.securityfocus.com/bid/101552 https://access.redhat.com/errata/RHSA-2018:0980 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19 https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html https://security.gentoo.org/glsa/201801-05 https://security.netapp.com/advisory/ntap-20180423-0004 https://www.openssh.com/txt/release-7.6 https://www.oracle.com/security-alerts/cpujan2020.html http • CWE-20: Improper Input Validation CWE-732: Incorrect Permission Assignment for Critical Resource •
CVE-2016-9841 – zlib: Out-of-bounds pointer arithmetic in inffast.c
https://notcve.org/view.php?id=CVE-2016-9841
inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. inffast.c en zlib 1.2.8 puede permitir que atacantes dependientes del contexto causen un impacto no especificado aprovechando una aritmética de puntero incorrecta.. • http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html http://www.openwall.com/lists/oss-security/2016/12/05/21 http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus •
CVE-2016-9131 – bind: assertion failure while processing response to an ANY query
https://notcve.org/view.php?id=CVE-2016-9131
named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed response to an RTYPE ANY query. named en ISC BIND 9.x en versiones anteriores a 9.9.9-P5, 9.10.x en versiones anteriores a 9.10.4-P5 y 9.11.x en versiones anteriores a 9.11.0-P2 permite a atacantes remotos provocar una denegación de servicio (fallo de aserción y salida de demonio) a través de una respuesta mal formada a una query RTYPE ANY. A denial of service flaw was found in the way BIND processed a response to an ANY query. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS response. • http://rhn.redhat.com/errata/RHSA-2017-0062.html http://www.debian.org/security/2017/dsa-3758 http://www.securityfocus.com/bid/95386 http://www.securitytracker.com/id/1037582 https://access.redhat.com/errata/RHSA-2017:1583 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05381687 https://kb.isc.org/article/AA-01439/74/CVE-2016-9131 https://security.gentoo.org/glsa/201708-01 https://security.netapp.com/advisory/ntap-20180926-0005 https: • CWE-20: Improper Input Validation •
CVE-2015-8960
https://notcve.org/view.php?id=CVE-2015-8960
The TLS protocol 1.2 and earlier supports the rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh, and ecdsa_fixed_ecdh values for ClientCertificateType but does not directly document the ability to compute the master secret in certain situations with a client secret key and server public key but not a server secret key, which makes it easier for man-in-the-middle attackers to spoof TLS servers by leveraging knowledge of the secret key for an arbitrary installed client X.509 certificate, aka the "Key Compromise Impersonation (KCI)" issue. El protocolo TLS 1.2 y versiones anteriores soporta los valores rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh y ecdsa_fixed_ecdh para ClientCertificateType pero no documenta directamente la habilidad para computar el secreto maestro en determinadas situaciones con una clave de cliente secreta y una clave pública de servidor pero no una clave secreta de servidor, lo que facilita a atacantes man-in-the-middle suplantar servidores TLS aprovechando el conocimiento de la clave secreta para un certificado cliente X.509 arbitrariamente instalado, también conocido como problema "Key Compromise Impersonation (KCI)". • http://twitter.com/matthew_d_green/statuses/630908726950674433 http://www.openwall.com/lists/oss-security/2016/09/20/4 http://www.securityfocus.com/bid/93071 https://kcitls.org https://security.netapp.com/advisory/ntap-20180626-0002 https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf • CWE-295: Improper Certificate Validation •