Buffer overflow

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...

Stack overflow

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...

Buffer overflow

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 snmpoiddecodeoid may overwrite memory areas beyond the provided...

CVE-2020-14936

CVE-2020-14936 concerns Contiki-NG 4.4–4.5, where the SNMP agent contains a buffer overflow in snmp_oid_decode_oid() triggered during SNMP request processing. The function does not sufficiently validate target-buffer capacity when writing parsed OID values, risking overwriting memory beyond the i...

CVE-2020-14936

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 snmpoiddecodeoid may overwrite memory areas beyond the provided...

CVE-2020-14935

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...

CVE-2020-14935

CVE-2020-14935 affects Contiki-NG 4.4–4.5. Buffer overflow in SNMP bulk get response encoding (snmp_engine_get_bulk) due to unchecked input length, overflowing a stack OIDs buffer and potentially overwriting the return address. This could redirect execution to payload data; exploitation details a...

CVE-2020-14934

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...

CVE-2020-14934

CVE-2020-14934 affects Contiki-NG 4.4–4.5 where the SNMP agent’s parsing of SNMP requests does not verify the number of requested variables against the internal buffer capacity. If the request contains more variables than the allocated buffer, a memory write goes out of bounds, potentially overwr...

CVE-2020-14937

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 ...

CVE-2020-14937

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 ...

Design/Logic Flaw

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 ...

CVE-2020-14937

The CVE-2020-14937 entry concerns Contiki-NG versions 4.4–4.5 where the SNMP BER encoder/decoder mishandles input/output buffer lengths, causing out-of-bounds reads/writes during BER encoding/decoding. Affected component: Contiki-NG SNMP BER encoder/decoder; root cause: insufficient verification ...

CVE-2020-14937

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 ...

Contiki and Contiki-NG Buffer Overflow Vulnerabilities

Contiki is an open source cross-platform operating system for IoT Internet of Things devices.Contiki-NG is an open source cross-platform operating system for the next generation of IoT Internet of Things devices. A buffer overflow vulnerability exists in Contiki-NG 4.3 and earlier and Contiki 3.0...

Contiki and Contiki-NG Input Validation Error Vulnerabilities

Contiki is an open source cross-platform operating system for IoT Internet of Things devices.Contiki-NG is an open source cross-platform operating system for the next generation of IoT Internet of Things devices. A security vulnerability exists in Contiki-NG 4.3 and earlier and Contiki 3.0 and...

CVE-2019-9183

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...

CVE-2019-9183

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...

CVE-2019-8359

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...

CVE-2019-8359

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...