57 results (0.001 seconds)

CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0

27 Nov 2024 — Contiki-NG is an open-source, cross-platform operating system for IoT devices. The Contiki-NG operating system processes source routing headers (SRH) in its two alternative RPL protocol implementations. The IPv6 implementation uses the results of this processing to determine whether an incoming packet should be forwarded to another host. Because of missing validation of the resulting next-hop address, an uncontrolled recursion may occur in the tcpip_ipv6_output function in the os/net/ipv6/tcpip.c module whe... • https://github.com/contiki-ng/contiki-ng/pull/2264 • CWE-674: Uncontrolled Recursion •

CVSS: 8.3EPSS: 0%CPEs: 1EXPL: 0

27 Nov 2024 — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the b... • https://github.com/contiki-ng/contiki-ng/pull/2936 • CWE-125: Out-of-bounds Read •

CVSS: 8.3EPSS: 0%CPEs: 1EXPL: 0

27 Nov 2024 — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding a... • https://github.com/contiki-ng/contiki-ng/pull/2937 • CWE-125: Out-of-bounds Read •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

27 Nov 2024 — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can be triggered in the two RPL implementations of the Contiki-NG operating system. The problem can occur when either one of these RPL implementations is enabled and connected to an RPL instance. If an IPv6 packet containing an odd number of padded bytes before the RPL option, it can cause the rpl_ext_header_hbh_update function to read a 16-bit integer from an odd address. The impact of this unaligned r... • https://github.com/contiki-ng/contiki-ng/pull/2962 • CWE-704: Incorrect Type Conversion or Cast •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

14 Feb 2024 — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be caused by an incoming DIO message when using the RPL-Lite implementation in the Contiki-NG operating system. More specifically, the prefix information of the DIO message contains a field that specifies the length of an IPv6 address prefix. The value of this field is not validated, which means that an attacker can set a value that is longer than the maximum prefix length. Subsequently, ... • https://github.com/contiki-ng/contiki-ng/pull/2721 • CWE-125: Out-of-bounds Read •

CVSS: 8.6EPSS: 0%CPEs: 1EXPL: 0

14 Feb 2024 — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. • https://github.com/contiki-ng/contiki-ng/pull/2484 • CWE-125: Out-of-bounds Read •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

14 Feb 2024 — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds write exists in the driver for IEEE 802.15.4 radios on nRF platforms in the Contiki-NG operating system. The problem is triggered when parsing radio frames in the `read_frame` function in the `arch/cpu/nrf/net/nrf-ieee-driver-arch.c` module. More specifically, the `read_frame` function performs an incomplete validation of the payload length of the packet, which is a value that can be set by an ext... • https://github.com/contiki-ng/contiki-ng/pull/2741 • CWE-787: Out-of-bounds Write •

CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0

18 Jan 2024 — An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service. Se descubrió un problema en Contiki-NG tinyDTLS hasta el 30 de agosto de 2018. Un protocolo de enlace incorrecto podría completarse con diferentes números de época en los paquetes Client_Hello, Client_key_exchange y Change_cipher_spec, lo que puede provocar una denega... • http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html • CWE-755: Improper Handling of Exceptional Conditions •

CVSS: 10.0EPSS: 1%CPEs: 1EXPL: 0

18 Jan 2024 — An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops. Se descubrió un problema en Contiki-NG tinyDTLS a través de la rama maestra 53a0d97. Los servidores DTLS manejan mal el uso inicial de un número de época grande. • https://github.com/contiki-ng/tinydtls/issues/24 • CWE-755: Improper Handling of Exceptional Conditions CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 9.4EPSS: 0%CPEs: 1EXPL: 0

18 Jan 2024 — An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. An infinite loop bug exists during the handling of a ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all resources) and a buffer over-read that can disclose sensitive information. Se descubrió un problema en Contiki-NG tinyDTLS a través de la rama maestra ... • https://seclists.org/fulldisclosure/2024/Jan/16 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •