CVE-2018-0173

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 DHCPv4 packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service DoS...

CVE-2018-0173

CVE-2018-0173 affects Cisco IOS Software and Cisco IOS XE Software. The issue is incomplete input validation of encapsulated DHCPv4 option 82 information, processed when handling DHCPOFFER responses forwarded to DHCP servers. A crafted DHCPv4 packet can trigger an error in processing the option 8...

Cisco IOS and IOS XE Software DHCP Version 4 Relay Denial of Service Vulnerability

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The vulnerability exists because the affected...

Cisco IOS and IOS XE Software DHCP Version 4 Relay Reply Denial of Service Vulnerability

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 DHCPv4 packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The...

Cisco IOS and IOS XE Software DHCP Version 4 Relay Heap Overflow Denial of Service Vulnerability

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The vulnerability exists because the affected...

CVE-2018-0173

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 DHCPv4 packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service DoS...

CVE-2018-0172

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The vulnerability exists because the affected...

CVE-2018-0174

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The vulnerability exists because the affected...

OracleVM 3.3 : dhcp (OVMSA-2018-0024)

The remote OracleVM system is missing necessary patches to address critical security updates : - Added oracle-errwarn-message.patch - Resolves: 1550085 - CVE-2018-5733 Avoid reference overflow 12:4.1.1-53.P1.2 - Resolves: 1550083 - CVE-2018-5732 Avoid options buffer overflow - Resolves: 1063217 -...

CVE-2018-0006

A high rate of VLAN authentication attempts sent from an adjacent host on the local broadcast domain can trigger high memory utilization by the BBE subscriber management daemon bbe-smgd, and lead to a denial of service condition. The issue was caused by attempting to process an unbounded number o...

Design/Logic Flaw

A high rate of VLAN authentication attempts sent from an adjacent host on the local broadcast domain can trigger high memory utilization by the BBE subscriber management daemon bbe-smgd, and lead to a denial of service condition. The issue was caused by attempting to process an unbounded number o...

CVE-2018-0006 Junos OS: bbe-smgd process denial of service while processing VLAN authentication requests/rejects

A high rate of VLAN authentication attempts sent from an adjacent host on the local broadcast domain can trigger high memory utilization by the BBE subscriber management daemon bbe-smgd, and lead to a denial of service condition. The issue was caused by attempting to process an unbounded number o...

CVE-2018-0006

The CVE-2018-0006 vulnerability affects Junos OS on devices configured for DHCPv4/v6 over AE auto-sensed VLANs in Broadband Edge deployments. The issue is a Denial of Service caused by a high rate of VLAN authentication requests triggering unbounded memory allocations in the bbe-smgd (BBE subscri...

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,...

Code injection

The HNCP parser in tcpdump before 4.9.2 has a buffer over-read in print-hncp.c:dhcpv4print...

Tcpdump HNCP parser buffer overflow vulnerability (CNVD-2017-28249)

Tcpdump is a set of sniffing tools developed by the Tcpdump team that run at the command line. The tools allow users to intercept and display TCP/IP and other packets sent or received over a network connection to that computer.HNCP parser is one of the network control protocol parsers. A buffer...

Cisco NX-OS DHCPv4 Crafted Packet DoS (cisco-sa-20161005-dhcp2)

According to its version and configuration, the Cisco NX-OS software running on the remote device is affected by a denial of service vulnerability in the DHCPv4 relay agent due to improper validation of DHCPv4 packets. An unauthenticated, remote attacker can exploit this, via a specially crafted...

Cisco NX-OS DHCPv4 Crafted Packet DoS (cisco-sa-20161005-dhcp1)

According to its version and configuration, the Cisco NX-OS software running on the remote device is affected by a denial of service vulnerability in the DHCPv4 relay agent and smart relay agent due to improper validation of DHCPv4 packets. An unauthenticated, remote attacker can exploit this, vi...

Cisco Warns of Critical Flaws in Nexus Switches

Cisco Systems released several critical software patches this week for its Nexus 7000-series switches and its NX-OS software. The vulnerabilities can allow remote access to systems, enabling a hacker to execute code or commands on targeted devices. According to Wednesday’s Cisco Security Advisory...

Cisco NX-OS Software Malformed DHCPv4 Packet Denial of Service Vulnerability (cisco-sa-20161005-dhcp2)

A vulnerability in the implementation of the DHCPv4 relay agent in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. Copyright C 2016 Greenbone Networks GmbH Some text descriptions might be excerpted from a...