Multiple Embedded TCP/IP Stacks (Update B)

1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: Multiple Equipment: Nut/Net, CycloneTCP, NDKTCPIP, FNET, uIP-Contiki-OS, uC/TCP-IP, uIP-Contiki-NG, uIP, picoTCP-NG, picoTCP, MPLAB Net, Nucleus NET, Nucleus ReadyStart Vulnerabilities: Use of...

Nut/OS Denial of Service and Remote Code Execution Vulnerability (CNVD-2021-19758)

Nut/OS is a modular, open-source real-time operating system for embedded platforms. A denial of service and remote code execution vulnerability exists in the DNS implementation in Ethernut in Nut/OS 5.1. The vulnerability stems from a failure to check if a domain name ends in '0'. An attacker cou...

Nut/OS Denial of Service and Remote Code Execution Vulnerability (CNVD-2021-19760)

Nut/OS is a modular, open-source real-time operating system for embedded platforms. A denial of service and remote code execution vulnerability exists in the DNS implementation in Ethernut in Nut/OS 5.1. The vulnerability stems from not checking the number of DNS queries/responses against availab...

Nut/OS Denial of Service and Remote Code Execution Vulnerabilities

Nut/OS is a modular, open-source real-time operating system for embedded platforms. A denial of service and remote code execution vulnerability exists in the DNS implementation in Ethernut in Nut/OS 5.1. The vulnerability stems from using the length byte of a domain name in a DNS query/response f...

Nut/OS Denial of Service and Remote Code Execution Vulnerability (CNVD-2021-19759)

Nut/OS is a modular, open-source real-time operating system for embedded platforms. A denial of service and remote code execution vulnerability exists in the DNS implementation in Ethernut in Nut/OS 5.1. The vulnerability stems from a failure to check the DNS response data length. An attacker cou...

CVE-2020-25108

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked it can be set to an arbitrary value from a packet. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25107

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. There is no check on whether a domain name has '\0' termination. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25108

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked it can be set to an arbitrary value from a packet. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25109

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses set in a DNS header is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25107

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. There is no check on whether a domain name has '\0' termination. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25109

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses set in a DNS header is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

Remote code execution

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25110

CVE-2020-25110 is part of the AMNESIA:33 set affecting the Nut/Net DNS processing in Nut/OS components. The SUSE and CERT-derived documents describe a memory-corruption vulnerability caused by not validating the DNS data length when parsing DNS questions/responses, enabling denial-of-service and ...

CVE-2020-25109

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses set in a DNS header is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25109

CVE-2020-25109 affects Nut/OS (Ethernut) 5.1 and earlier in the DNS implementation. The issue is that the number of DNS queries/responses (as set in the DNS header) is not checked against the available data, enabling potential denial of service and possibly remote code execution. Connected adviso...

CVE-2020-25108

CVE-2020-25108 is part of the AMNESIA:33 set affecting the Nut/OS uIP/Nut/Net DNS handling. The documented root cause is that the DNS response length is not validated, allowing a crafted DNS packet to trigger denial of service and, per some sources, possibly remote code execution in Nut/OS 5.1. T...

CVE-2020-25108

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked it can be set to an arbitrary value from a packet. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

CVE-2020-25107

CVE-2020-25107 has concrete details in the connected SUSE advisory: it concerns Nut/Net’s DNS processing (the DNS questions/responses path) in Nut/OS Nut/Net. The vulnerability is an out-of-bounds read (CWE-125) in the DNS handling code, reported for Nut/Net 5.1 and prior, with a CVSSv3 base scor...

CVE-2020-25107

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. There is no check on whether a domain name has '\0' termination. This may lead to successful Denial-of-Service, and possibly Remote Code Execution...

Contiki 缓冲区错误漏洞

Nut/OS is a modular, open-source real-time operating system for embedded platforms. A denial of service and remote code execution vulnerability exists in the DNS implementation in Ethernut in Nut/OS 5.1. The vulnerability stems from a failure to check if a domain name ends in '0'. An attacker cou...