CVE-2020-14937: contiki-ng Out-of-bounds Read

Vulnerability summary

CVE-2020-14937 is a critical (CVSS 9.1) Out-of-bounds Read vulnerability in contiki-ng. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 18-08-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.