dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient

A flaw was found in the Dynamic Host Configuration Protocol DHCP. There is a discrepancy between the code that handles encapsulated option information in leases transmitted "on the wire" and the code which reads and parses lease information after it has been written to disk storage. This flaw...

dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient

A flaw was found in the Dynamic Host Configuration Protocol DHCP. There is a discrepancy between the code that handles encapsulated option information in leases transmitted "on the wire" and the code which reads and parses lease information after it has been written to disk storage. This flaw...

Fedora: Security Advisory for dhcp (FEDORA-2021-8ca8263bde)

The remote host is missing an update for the Copyright C 2021 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...

[SECURITY] Fedora 33 Update: dhcp-4.4.2-9.b1.fc33

DHCP Dynamic Host Configuration Protocol...

Fedora: Security Advisory for dhcp (FEDORA-2021-08cdb4dc34)

The remote host is missing an update for the Copyright C 2021 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...

CVE-2020-14335

A flaw was found in Red Hat Satellite, which allows a privileged attacker to read OMAPI secrets through the ISC DHCP of Smart-Proxy. This flaw allows an attacker to gain control of DHCP records from the network. The highest threat from this vulnerability is to system availability...

[SECURITY] Fedora 34 Update: dhcp-4.4.2-11.b1.fc34

DHCP Dynamic Host Configuration Protocol...

PT-2021-9717 · Red Hat · Red Hat Satellite

Name of the Vulnerable Software and Affected Versions: Red Hat Satellite affected versions not specified Description: A flaw in Red Hat Satellite allows a privileged attacker to read OMAPI secrets through the ISC DHCP of Smart-Proxy, potentially gaining control of DHCP records from the network. T...

Vulnerability fixed in DHCP

A vulnerability has been fixed in DHCP. The vulnerability allows a remote malicious party to cause a denial-of-service. cause. ISC has released updates to fix the vulnerability. More information can be found on the page below: https://kb.isc.org/docs/cve-2021-25217 -= Ubuntu =- Canonical has made...

USN-4969-2 isc-dhcp vulnerability

USN-4969-1 fixed a vulnerability in DHCP. This update provides the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM. Original advisory details: Jon Franklin and Pawel Wieczorkiewicz discovered that DHCP incorrectly handled lease file parsing. A remote attacker could possibly use this issue...

USN-4969-1 isc-dhcp vulnerability

Jon Franklin and Pawel Wieczorkiewicz discovered that DHCP incorrectly handled lease file parsing. A remote attacker could possibly use this issue to cause DHCP to crash, resulting in a denial of service...

UBUNTU-CVE-2021-25217

In ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16, ISC DHCP 4.4.0 - 4.4.2 Other branches of ISC DHCP i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series are beyond their End-of-Life EOL and no longer supported by ISC. From inspection it is clear that the defect is also present in...

ISC DHCP 缓冲区错误漏洞

ISC DHCP is a suite of open source Dynamic Host Configuration Protocol server software from ISC Corporation. ISC DHCP suffers from a buffer error vulnerability that stems from a program that may cause dhclient to crash when reading an incorrect lease, which could lead to network connectivity issu...

DEBIAN-CVE-2020-13529

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server...

UBUNTU-CVE-2020-13529

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server...

systemd 安全漏洞

systemd is a Linux-based system and service manager from the individual developer Lennart Poettering in Germany. The product is compatible with SysV and LSB startup scripts and provides a framework for representing dependencies between system services. A security vulnerability exists in systemd d...

foreman: world-readable OMAPI secret through the ISC DHCP server

A flaw was found in Red Hat Satellite, which allows a privileged attacker to read OMAPI secrets through the ISC DHCP of Smart-Proxy. This flaw allows an attacker to gain control of DHCP records from the network. The highest threat from this vulnerability is to system availability...

The vulnerability of DHCP option 119 on FreeBSD operating systems allows a perpetrator to execute arbitrary code.

The vulnerability of DHCP option 119 in FreeBSD operating systems is related to writing beyond the buffer boundaries in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

CVE-2021-0240

On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon JDHCPD process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically...

Wind River VxWorks 缓冲区错误漏洞

Wind River VxWorks is an operating system from Wind River, Inc. the industry-leading real-time operating system for building embedded devices and systems. A security vulnerability exists in Wind River VxWorks version 6.8 that could lead to a dhcp server stack overflow...