CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-21282 – Buffer overflow in RPL source routing header processing
https://notcve.org/view.php?id=CVE-2021-21282
18 Jun 2021 — Contiki-NG is an open-source, cross-platform operating system for internet of things devices. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround. Contiki-NG es un sistema operativo de código abierto y multiplataforma para dispositivos del Internet de las cosas. • https://github.com/contiki-ng/contiki-ng/pull/1183 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 9.8EPSS: 1%CPEs: 2EXPL: 0CVE-2020-24336
https://notcve.org/view.php?id=CVE-2020-24336
11 Dec 2020 — 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 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-13988 – Ubuntu Security Notice USN-6259-1
https://notcve.org/view.php?id=CVE-2020-13988
11 Dec 2020 — An issue was discovered in Contiki through 3.0. An Integer Overflow exists in the uIP TCP/IP Stack component when parsing TCP MSS options of IPv4 network packets in uip_process in net/ipv4/uip.c. Se detectó un problema en Contiki versiones hasta 3.0. Se presenta un Desbordamiento de Enteros en el componente uIP TCP/IP Stack cuando se analizan las opciones TCP MSS de los paquetes de red IPv4 en la función uip_process en el archivo net/ipv4/uip.c Jos Wetzels, Stanislav Dashevskyi, and Amine Amri discover... • https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 • CWE-190: Integer Overflow or Wraparound •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-14936
https://notcve.org/view.php?id=CVE-2020-14936
18 Aug 2020 — Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. Functions parsing the OIDs in SNMP requests lack sufficient allocated target-buffer capacity verification when writing parsed OID values. The function snmp_oid_decode_oid() may overwrite memory areas beyond the provided target buffer, when called from snmp_message_decode() upon an SNMP request reception. Because the content of the write operations is externally provided in the SNMP requests, it enables a remote overwrite of a... • https://drive.google.com/file/d/1FypWH_g475jSL0mDFzquaATCeRIHQ2kj/view?usp=sharing • CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 2%CPEs: 1EXPL: 1CVE-2020-14935
https://notcve.org/view.php?id=CVE-2020-14935
18 Aug 2020 — Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP bulk get request response encoding function. The function parsing the received SNMP request does not verify the input message's requested variables against the capacity of the internal SNMP engine buffer. When a bulk get request response is assembled, a stack buffer dedicated for OIDs (with a limited capacity) is allocated in snmp_engine_get_bulk(). When snmp_engine_get_bulk() is populating the stack buffer, an overflow condition ma... • https://drive.google.com/file/d/1qp3ZXaFRiR_imWg0lUbI7-D-hIT268EB/view?usp=sharing • CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 1CVE-2020-14934
https://notcve.org/view.php?id=CVE-2020-14934
18 Aug 2020 — Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. The function parsing the received SNMP request does not verify the input message's requested variables against the capacity of the internal SNMP engine buffer. If the number of variables in the request exceeds the allocated buffer, a memory write out of the buffer boundaries occurs. This write operation provides a possibility to overwrite other variables allocated in the .bss section by the application. Because the sender of ... • https://drive.google.com/file/d/1NIf0Y0S47Lu85uSi29kt9tgSh0jYZYfj/view?usp=sharing • CWE-787: Out-of-bounds Write •
CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 1CVE-2020-14937
https://notcve.org/view.php?id=CVE-2020-14937
18 Aug 2020 — Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions. Se detectaron problemas de acceso a la memoria fuera de límites del búfer en Contiki-NG versiones 4.4 hasta 4.5, en el encoder/decoder BER de SNMP. La longitud de los búferes ... • https://drive.google.com/file/d/1mAkJBVZNv5PMVwLojru0njH38zEXpWui/view?usp=sharing • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2019-9183
https://notcve.org/view.php?id=CVE-2019-9183
23 Apr 2020 — An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame. Se descubrió un problema en Contiki-NG a través de 4.3 y Contiki a través de 3.0. • https://github.com/contiki-ng/contiki-ng/pull/972 • CWE-191: Integer Underflow (Wrap or Wraparound) CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 0%CPEs: 2EXPL: 0CVE-2019-8359
https://notcve.org/view.php?id=CVE-2019-8359
23 Apr 2020 — An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. An out of bounds write is present in the data section during 6LoWPAN fragment re-assembly in the face of forged fragment offsets in os/net/ipv6/sicslowpan.c. Se detectó un problema en Contiki-NG versiones hasta 4.3 y Contiki versiones hasta 3.0. Una escritura fuera de límites está presente en la sección de datos durante el reensamblaje de fragmentos 6LoWPAN frente a las compensaciones de fragmentos forjados en el archivo os/net/ipv6/... • https://github.com/contiki-ng/contiki-ng/pull/972 • CWE-787: Out-of-bounds Write •
CVSS: 7.1EPSS: 0%CPEs: 1EXPL: 0CVE-2018-20579
https://notcve.org/view.php?id=CVE-2018-20579
28 Dec 2018 — Contiki-NG before 4.2 has a stack-based buffer overflow in the push function in os/lib/json/jsonparse.c that allows an out-of-bounds write of an '{' or '[' character. Contiki-NG, en versiones anteriores a la 4.2, tiene un desbordamiento de búfer basado en pila en la función push en os/lib/json/jsonparse.c que permite una escritura fuera de límites de un carácter "{" o "[". • https://github.com/contiki-ng/contiki-ng/issues/601 • CWE-787: Out-of-bounds Write •