CVSS: 7.8EPSS: 0%CPEs: 491EXPL: 0CVE-2017-12237 – Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2017-12237
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS 15.0 through 15.6 and Cisco IOS XE 3.5 through 16.5 could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to how an affected device processes certain IKEv2 packets. An attacker could exploit this vulnerability by sending specific IKEv2 packets to an affected device to be processed. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. This vulnerability affects Cisco devices that have the Internet Security Association and Key Management Protocol (ISAKMP) enabled. • http://www.securityfocus.com/bid/101037 http://www.securitytracker.com/id/1039460 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike • CWE-399: Resource Management Errors CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.5EPSS: 0%CPEs: 34EXPL: 0CVE-2017-12238 – Cisco Catalyst 6800 Series Switches VPLS Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2017-12238
A vulnerability in the Virtual Private LAN Service (VPLS) code of Cisco IOS 15.0 through 15.4 for Cisco Catalyst 6800 Series Switches could allow an unauthenticated, adjacent attacker to cause a C6800-16P10G or C6800-16P10G-XL type line card to crash, resulting in a denial of service (DoS) condition. The vulnerability is due to a memory management issue in the affected software. An attacker could exploit this vulnerability by creating a large number of VPLS-generated MAC entries in the MAC address table of an affected device. A successful exploit could allow the attacker to cause a C6800-16P10G or C6800-16P10G-XL type line card to crash, resulting in a DoS condition. This vulnerability affects Cisco Catalyst 6800 Series Switches that are running a vulnerable release of Cisco IOS Software and have a Cisco C6800-16P10G or C6800-16P10G-XL line card in use with Supervisor Engine 6T. • http://www.securityfocus.com/bid/101040 http://www.securitytracker.com/id/1039453 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-vpls • CWE-399: Resource Management Errors •
CVSS: 10.0EPSS: 6%CPEs: 2762EXPL: 0CVE-2017-12240 – Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2017-12240
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. • http://www.securityfocus.com/bid/101034 http://www.securitytracker.com/id/1039445 https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45390 https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77959 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-dhcp • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.9EPSS: 0%CPEs: 6EXPL: 0CVE-2011-4667
https://notcve.org/view.php?id=CVE-2011-4667
The encryption library in Cisco IOS Software 15.2(1)T, 15.2(1)T1, and 15.2(2)T, Cisco NX-OS in Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module, and Cisco MDS 9000 Storage Services Node module before 5.2(6), and Cisco IOS in Cisco VPN Services Port Adaptor for Catalyst 6500 12.2(33)SXI, and 12.2(33)SXJ when IP Security (aka IPSec) is used, allows remote attackers to obtain unencrypted packets from encrypted sessions. La biblioteca de cifrado en Cisco IOS Software 15.2(1)T, 15.2(1)T1 y 15.2(2)T, Cisco NX-OS en Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module y Cisco MDS 9000 Storage Services Node module en versiones anteriores a la 5.2(6) y Cisco IOS en Cisco VPN Services Port Adaptor para Catalyst 6500 12.2(33)SXI y 12.2(33)SXJ cuando se usa IP Security (también conocido como IPSec) permite que los atacantes remotos obtengan paquetes sin cifrar a través de sesiones sin cifrar. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20120913-CVE-2011-4667 https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/release/notes/ol_14271/caveats_SXI_rebuilds.html • CWE-310: Cryptographic Issues •
CVSS: 7.5EPSS: 0%CPEs: 71EXPL: 0CVE-2017-6627 – Cisco IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2017-6627
A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service (DoS) condition. The vulnerability is due to Cisco IOS Software application changes that create UDP sockets and leave the sockets idle without closing them. An attacker could exploit this vulnerability by sending UDP packets with a destination port of 0 to an affected device. A successful exploit could allow the attacker to cause UDP packets to be held in the input interfaces queue, resulting in a DoS condition. The input interface queue will stop holding UDP packets when it receives 250 packets. • http://www.securityfocus.com/bid/100644 http://www.securitytracker.com/id/1039289 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-ios-udp • CWE-399: Resource Management Errors CWE-404: Improper Resource Shutdown or Release •