CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-24335
https://notcve.org/view.php?id=CVE-2020-24335
An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG. Domain name parsing lacks bounds checks, allowing an attacker to corrupt memory with crafted DNS packets. Se detectó un problema en uIP versiones hasta 1.0, como es usado en Contiki y Contiki-NG. El análisis de nombres de dominio carece de controles de límites, permitiendo a un atacante corromper la memoria con paquetes DNS diseñados • https://github.com/adamdunkels/uip https://github.com/contiki-ng/contiki-ng https://github.com/contiki-os/contiki https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 • CWE-125: Out-of-bounds Read •
CVSS: 9.8EPSS: 58%CPEs: 1EXPL: 0CVE-2020-25112
https://notcve.org/view.php?id=CVE-2020-25112
An issue was discovered in the IPv6 stack in Contiki through 3.0. There are inconsistent checks for IPv6 header extension lengths. This leads to Denial-of-Service and potential Remote Code Execution via a crafted ICMPv6 echo packet. Se detectó un problema en la pila IPv6 en Contiki versiones hasta 3.0. Existen comprobaciones inconsistentes para las longitudes de extensión del encabezado IPv6. • https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 • CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 58%CPEs: 1EXPL: 0CVE-2020-25111
https://notcve.org/view.php?id=CVE-2020-25111
An issue was discovered in the IPv6 stack in Contiki through 3.0. There is an insufficient check for the IPv6 header length. This leads to Denial-of-Service and potential Remote Code Execution via a crafted ICMPv6 echo packet. Se detectó un problema en la pila de IPv6 en Contiki versiones hasta 3.0. Hay una verificación insuficiente para la longitud del encabezado IPv6. • https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 • CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 4%CPEs: 2EXPL: 0CVE-2020-24336
https://notcve.org/view.php?id=CVE-2020-24336
An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn't verify whether the address in the answer's length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled. Se detectó un problema en Contiki versiones hasta 3.0 y Contiki-NG versiones hasta 4.5. • https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 8.2EPSS: 0%CPEs: 3EXPL: 0CVE-2020-24334
https://notcve.org/view.php?id=CVE-2020-24334
The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c. El código que procesa las respuestas DNS en uIP versiones hasta 1.0, como es usado en Contiki y Contiki-NG, no verifica si el número de respuestas especificadas en el encabezado del paquete DNS corresponde a los datos de respuesta disponibles en el paquete DNS, lo que conlleva a una lectura fuera de límites y una Denegación de Servicio en el archivo resolv.c • https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 • CWE-125: Out-of-bounds Read •