dhcp: double-deletion of the released addresses in the dhcpv6 code leading to crash and possible DoS

There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All...

DrayTek routers cross-site request forgery vulnerability

DrayTek routers are router products from DrayTek Taiwan, China. A cross-site request forgery vulnerability exists in versions of DrayTek routers prior to 2018-05-23. A remote attacker could exploit the vulnerability to change DNS or DHCP settings...

Microsoft Windows DHCP Server Remote Code Execution Vulnerability (CNVD-2019-25949)

Microsoft Windows Server is a set of server operating systems from the American company Microsoft Microsoft. A remote code execution vulnerability exists in the DHCP service in Microsoft Windows Server. An attacker could exploit this vulnerability to run arbitrary code on the DHCP failover server...

The vulnerability of the DHCP server service in Windows Server operating systems allows a perpetrator to cause a service failure or execute arbitrary code.

The vulnerability of the DHCP server service for Windows Server lies in the fact that operations are performed outside of the buffer in memory. Exploiting this vulnerability could allow a malicious actor to cause service failures or execute arbitrary code by sending a specially crafted packet to...

[SECURITY] Fedora 30 Update: dhcp-4.3.6-35.fc30

DHCP Dynamic Host Configuration Protocol...

Fedora Update for dhcp FEDORA-2019-f72801c260

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Fedora Update for dhcp FEDORA-2019-0370ad8310

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

The vulnerability of DHCP and TFTP services provided by Cisco Small Business 300 Series router microprogramming systems allows a attacker to induce a service failure.

The vulnerability of DHCP and TFTP services provided by Cisco Small Business 300 Series routers is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures by sending specially crafted DHCP packets...

CVE-2019-1814

A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series Sx300 Managed Switches could allow an unauthenticated, remote attacker to cause the device to become low on system memory, which in turn could lead to an unexpected reload of the device and...

Cisco Small Business 300 Series Managed Switches Denial of Service Vulnerability

Cisco Small Business 300 Series Managed Switches is a switch device from Cisco USA. The Cisco Small Business 300 Series Managed Switches denial of service vulnerability, which stems from a failure to free system memory upon receipt of an unexpected DHCP request, can be exploited by an attacker to...

Ubuntu Denial of Service Vulnerability

Ubuntu is a set of GNU/Linux operating systems for desktop applications from the British company Canonical and Ubuntu. A security vulnerability exists in Ubuntu version 18.10 and 18.04 LTS. A remote attacker could exploit the vulnerability to cause a DHCP crash, resulting in a denial of service...

[SECURITY] Fedora 30 Update: dhcp-4.3.6-34.fc30

DHCP Dynamic Host Configuration Protocol...

CVE-2019-0037

In a Dynamic Host Configuration Protocol version 6 DHCPv6 environment, the jdhcpd daemon may crash and restart upon receipt of certain DHCPv6 solicit messages received from a DHCPv6 client. By continuously sending the same crafted packet, an attacker can repeatedly crash the jdhcpd process causin...

Design/Logic Flaw

In a Dynamic Host Configuration Protocol version 6 DHCPv6 environment, the jdhcpd daemon may crash and restart upon receipt of certain DHCPv6 solicit messages received from a DHCPv6 client. By continuously sending the same crafted packet, an attacker can repeatedly crash the jdhcpd process causin...

Microsoft Windows DHCP Client Memory Corruption Vulnerability

Microsoft Windows and Microsoft Windows Server are both products of Microsoft Corporation, U.S.A. Microsoft Windows is an operating system for personal devices.Microsoft Windows Server is a server operating system. Windows DHCP Client is one of the Dynamic Host IP Configuration Protocol clients. ...

Microsoft Patch Tuesday — March 2019: Vulnerability disclosures and Snort coverage

Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 64 vulnerabilities, 17 of which are rated “critical,” 45 that are considered “important” and one “moderate” and “low” vulnerability each. This...

DEBIAN-CVE-2017-3144

A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond...

ALPINE-CVE-2018-5733

A malicious client which is allowed to send very large amounts of traffic billions of packets to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 - 4.1-ESV-R15, 4.2.0 - 4.2.8, 4.3.0 - 4.3.6, 4.4.0...

DEBIAN-CVE-2018-5733

A malicious client which is allowed to send very large amounts of traffic billions of packets to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 - 4.1-ESV-R15, 4.2.0 - 4.2.8, 4.3.0 - 4.3.6, 4.4.0...

systemd: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling

It was discovered that systemd-network does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to an integer underflow that can be used to produce an heap-based buffer overflow. A malicious host on the same network segment as the victim's one may...