CVSS: 5.9EPSS: 0%CPEs: 205EXPL: 0CVE-2021-3449 – NULL pointer deref in signature_algorithms processing
https://notcve.org/view.php?id=CVE-2021-3449
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. • http://www.openwall.com/lists/oss-security/2021/03/27/1 http://www.openwall.com/lists/oss-security/2021/03/27/2 http://www.openwall.com/lists/oss-security/2021/03/28/3 http://www.openwall.com/lists/oss-security/2021/03/28/4 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148 https://kb.pulse • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 181EXPL: 0CVE-2017-2681
https://notcve.org/view.php?id=CVE-2017-2681
Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected. This vulnerability affects only SIMATIC HMI Multi Panels and HMI Mobile Panels, and S7-300/S7-400 devices. Los paquetes PROFINET DCP especialmente diseñados que se envían en un segmento Ethernet local (capa 2) a un producto afectado podrían causar una condición de denegación de servicio de ese producto. • http://www.securityfocus.com/bid/98369 http://www.securitytracker.com/id/1038463 https://cert-portal.siemens.com/productcert/html/ssa-293562.html https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-293562.pdf • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.1EPSS: 0%CPEs: 209EXPL: 0CVE-2017-2680
https://notcve.org/view.php?id=CVE-2017-2680
Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected. Los paquetes de difusión PROFINET DCP especialmente elaborados podrían causar una condición de denegación de servicio de los productos afectados en un segmento Ethernet local (capa 2). Se requiere la interacción humana para recuperar los sistemas. • http://www.securityfocus.com/bid/98369 http://www.securitytracker.com/id/1038463 https://cert-portal.siemens.com/productcert/html/ssa-284673.html https://cert-portal.siemens.com/productcert/html/ssa-293562.html https://cert-portal.siemens.com/productcert/html/ssa-546832.html https://cert-portal.siemens.com/productcert/pdf/ssa-284673.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-546832.pdf https://ics-cert.us- • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.8EPSS: 0%CPEs: 11EXPL: 0CVE-2015-2823
https://notcve.org/view.php?id=CVE-2015-2823
Siemens SIMATIC HMI Basic Panels 2nd Generation before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Comfort Panels before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Advanced before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Professional before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Basic Panels 1st Generation (WinCC TIA Portal), SIMATIC HMI Mobile Panel 277 (WinCC TIA Portal), SIMATIC HMI Multi Panels (WinCC TIA Portal), and SIMATIC WinCC 7.x before 7.3 Upd4 allow remote attackers to complete authentication by leveraging knowledge of a password hash without knowledge of the associated password. Siemens SIMATIC HMI Basic Panels 2nd Generation anterior a WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Comfort Panels anterior a WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Advanced anterior a WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Professional anterior a WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Basic Panels 1st Generation (WinCC TIA Portal), SIMATIC HMI Mobile Panel 277 (WinCC TIA Portal), SIMATIC HMI Multi Panels (WinCC TIA Portal), y SIMATIC WinCC 7.x anterior a 7.3 Upd4 permiten a atacantes remotos completar la autenticación mediante el aprovechamiento de conocimiento de un hash de contraseñas sin conocer la contraseña asociada. • http://www.securityfocus.com/bid/74040 http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-487246.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-487246.pdf • CWE-287: Improper Authentication •