CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 1CVE-2021-45117
https://notcve.org/view.php?id=CVE-2021-45117
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference. Los stubs de pila ANSI C autogenerados por OPC (en los NodeSets) no manejan todos los casos de error. Esto puede conllevar a una desreferencia de puntero NULL • https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf https://www.youtube.com/watch?v=qv-RBdCaV4k • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 12EXPL: 0CVE-2021-40142
https://notcve.org/view.php?id=CVE-2021-40142
In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer. En OPC Foundation Local Discovery Server (LDS) versiones anteriores a 1.04.402.463, unos atacantes remotos pueden causar una denegación de servicio (DoS) mediante el envío de mensajes cuidadosamente diseñados que conllevan a el Acceso a una Ubicación de Memoria Después del Final de un Búfer. • https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf https://opcfoundation.org/security-bulletins • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
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: 7.8EPSS: 0%CPEs: 68EXPL: 0CVE-2019-6575
https://notcve.org/view.php?id=CVE-2019-6575
A vulnerability has been identified in SIMATIC CP 443-1 OPC UA (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V2.7), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (incl. SIPLUS variants) (All versions < V15.1 Upd 4), SIMATIC HMI Comfort Panels 4" - 22" (incl. SIPLUS variants) (All versions < V15.1 Upd 4), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Upd 4), SIMATIC IPC DiagMonitor (All versions < V5.1.3), SIMATIC NET PC Software V13 (All versions), SIMATIC NET PC Software V14 (All versions < V14 SP1 Update 14), SIMATIC NET PC Software V15 (All versions), SIMATIC RF188C (All versions < V1.1.0), SIMATIC RF600R family (All versions < V3.2.1), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 < V2.6.1), SIMATIC S7-1500 Software Controller (All versions between V2.5 (including) and V2.7 (excluding)), SIMATIC WinCC OA (All versions < V3.15 P018), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Upd 4), SINEC NMS (All versions < V1.0 SP1), SINEMA Server (All versions < V14 SP2), SINUMERIK OPC UA Server (All versions < V2.1), TeleControl Server Basic (All versions < V3.1.1). Specially crafted network packets sent to affected devices on port 4840/tcp could allow an unauthenticated remote attacker to cause a denial of service condition of the OPC communication or crash the device. • https://cert-portal.siemens.com/productcert/pdf/ssa-307392.pdf • CWE-248: Uncaught Exception CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2018-4835
https://notcve.org/view.php?id=CVE-2018-4835
A vulnerability has been identified in TeleControl Server Basic < V3.1. An attacker with network access to the TeleControl Server Basic's port 8000/tcp could bypass the authentication mechanism and read limited information. Se ha identificado una vulnerabilidad en TeleControl Server Basic en versiones anteriores a la 3.1. Un atacante con acceso de red al puerto 8000/tcp de TeleControl Server Basic podría evadir el mecanismo de autenticación y leer información limitada. • http://www.securityfocus.com/bid/102894 http://www.securityfocus.com/bid/102904 https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-651454.pdf • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-287: Improper Authentication •