SUSE 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...

SUSE CVE-2018-15688

A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239...

SUSE CVE-2018-20679

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components consumed by the DHCP server, client, and relay allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcpgetoption in...

SUSE CVE-2022-2928

In ISC DHCP 4.4.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1, when the function optioncodehashlookup is called from addoption, it increases the option's refcount field. However, there is not a corresponding call to optiondereference to decrement the refcount field. The function addoption is on...

Security Bulletin: ISC DHCP server for IBM i is vulnerable to a denial of service attack due to a memory leak and refererence count overflow (CVE-2022-2928, CVE-2022-2929)

Summary ISC DHCP server on IBM i is vulnerable to a denial of service attack due to a memory leak in the fqdnuniversedecode function and a reference count overflow in the addoption function as described in the vulnerability details section. IBM i has addressed the vulnerabilities in ISC DHCP serv...

USN-5658-3: DHCP vulnerabilities

USN-5658-1 fixed several vulnerabilities in DHCP. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that DHCP incorrectly handled option reference counting. A remote attacker could possibly use this issue to cause DHCP servers to cras...

dnsmasq security and bug fix update

An update is available for dnsmasq. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server...

PVS: Targets fail to boot since it attempts to boot from wrong PVS servers

PVS created a new PVS site and updated option 66 and 67 in the DHCP servers, but Targets failed to connect to the PVS servers in the new PVS site during boot, and it continued to use the PVS servers in old PVS Site...

Medium: dhcp

Issue Overview: An integer overflow vulnerability was found in the DHCP server. When the "optioncodehashlookup" function is called from "addoption", it increases the option's "refcount" field. However, there is not a corresponding call to "optiondereference" to decrement the "refcount" field. The...

ALSA-2022:7633 Moderate: dnsmasq security and bug fix update

The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server forwarder and DHCP Dynamic Host Configuration Protocol server. Security Fixes: dnsmasq: Heap use after free in dhcp6norelay CVE-2022-0934 For more details about the security issues, including the impact, a CVSS score,...

Moderate: dnsmasq security and bug fix update

The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server forwarder and DHCP Dynamic Host Configuration Protocol server. Security Fixes: dnsmasq: Heap use after free in dhcp6norelay CVE-2022-0934 For more details about the security issues, including the impact, a CVSS score,...

MGASA-2022-0374 Updated dhcp packages fix security vulnerability

In ISC DHCP 4.4.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1, when the function optioncodehashlookup is called from addoption, it increases the option's refcount field. However, there is not a corresponding call to optiondereference to decrement the refcount field. The function addoption is on...

Denial Of Service (DoS)

libdhcp.so is vulnerable to Denial Of Service DoS. The vulnerability exists in fqdnuniversedecode function of option.c when a system with access to a DHCP server which allows an attacker to crash the application via malicious inputs...

ALPINE-CVE-2022-2928

In ISC DHCP 4.4.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1, when the function optioncodehashlookup is called from addoption, it increases the option's refcount field. However, there is not a corresponding call to optiondereference to decrement the refcount field. The function addoption is on...

CVE-2022-2929 DHCP memory leak

In ISC DHCP 1.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory...

CVE-2022-2929

In ISC DHCP 1.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory...

Debian DSA-5251-1 : isc-dhcp - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5251 advisory. Several vulnerabilities have been discovered in the ISC DHCP client, relay and server. CVE-2022-2928 It was discovered that the DHCP server does not correctly...

CVE-2022-2929

A vulnerability was found in the DHCP server where the "fqdnuniversedecode" function allocates buffer space for the contents of option 81 fqdn data received in a DHCP packet. The maximum length of a DNS "label" is 63 bytes. The function tests the length byte of each label contained in the "fqdn";...

CVE-2022-2928

An integer overflow vulnerability was found in the DHCP server. When the "optioncodehashlookup" function is called from "addoption", it increases the option's "refcount" field. However, there is not a corresponding call to "optiondereference" to decrement the "refcount" field. The "addoption"...

UBUNTU-CVE-2022-2929

In ISC DHCP 1.0 - 4.4.3, ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory...