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CVSS: 6.8EPSS: 0%CPEs: 19EXPL: 0

A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. • http://www.securitytracker.com/id/1041790 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-iosxr-dos • CWE-20: Improper Input Validation •

CVSS: 8.6EPSS: 0%CPEs: 11EXPL: 0

A vulnerability in the Local Packet Transport Services (LPTS) feature set of Cisco ASR 9000 Series Aggregation Services Router Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input and validation checking on certain Precision Time Protocol (PTP) ingress traffic to an affected device. An attacker could exploit this vulnerability by injecting malformed traffic into an affected device. A successful exploit could allow the attacker to cause services on the device to become unresponsive, resulting in a DoS condition. Cisco Bug IDs: CSCvj22858. • http://www.securityfocus.com/bid/105185 http://www.securitytracker.com/id/1041538 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-asr-ptp-dos • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •

CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 0

A vulnerability in the netconf interface of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on affected system. The vulnerability is due to improper handling of malformed requests processed by the netconf process. An attacker could exploit this vulnerability by sending malicious requests to the affected software. An exploit could allow the attacker to cause the targeted process to restart, resulting in a DoS condition on the affected system. Cisco Bug IDs: CSCvg95792. • http://www.securityfocus.com/bid/104083 http://www.securitytracker.com/id/1040827 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-iosxr • CWE-399: Resource Management Errors CWE-755: Improper Handling of Exceptional Conditions •

CVSS: 7.4EPSS: 0%CPEs: 21EXPL: 0

A vulnerability in the UDP broadcast forwarding function of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of UDP broadcast packets that are forwarded to an IPv4 helper address. An attacker could exploit this vulnerability by sending multiple UDP broadcast packets to the affected device. An exploit could allow the attacker to cause a buffer leak on the affected device, eventually resulting in a DoS condition requiring manual intervention to recover. This vulnerability affects all Cisco IOS XR platforms running 6.3.1, 6.2.3, or earlier releases of Cisco IOS XR Software when at least one IPv4 helper address is configured on an interface of the device. • http://www.securityfocus.com/bid/103929 http://www.securitytracker.com/id/1040710 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr • CWE-399: Resource Management Errors •

CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0

A vulnerability in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause one of the LPTS processes on an affected system to restart unexpectedly, resulting in a brief denial of service (DoS) condition. The vulnerability is due to incomplete LPTS frame validation by the affected software. An attacker could exploit this vulnerability by sending crafted XML requests to the management interface of an affected system. A successful exploit could allow the attacker to cause one of the LPTS processes on the affected system to restart unexpectedly, which would impact LPTS traffic and cause a brief DoS condition while the process restarts. Cisco Bug IDs: CSCvf76332. • http://www.securityfocus.com/bid/101989 http://www.securitytracker.com/id/1039927 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xr • CWE-20: Improper Input Validation CWE-399: Resource Management Errors •