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

published August 18, 2020

CVSS
—
EPSS
1%
Percentile
73.7
In the wild
Unconfirmed
What it is

⚠️ Oops! A memory access out of bounds in Contiki-NG could let someone peek where they shouldn't! Think of it like a restaurant that runs out of space on their tables, and servers start placing food on the floor! Without proper checks on input lengths, the SNMP encoder/decoder might grab bits from the wrong places during data handling, leading to a messy situation. An attacker could potentially read or even overwrite sensitive areas of memory, which might lead to unexpected behavior or crashes. This could compromise data integrity or expose sensitive information, making it crucial to address!

Put simply

Think of it like a restaurant that runs out of space on their tables, and servers start placing food on the floor! Without proper checks on input lengths, the SNMP encoder/decoder might grab bits from the wrong places during data handling, leading to a messy situation. This vulnerability arises when the length of input/output buffers in the SNMP BER encoder/decoder is insufficiently verified, allowing for out-of-bounds access when encoding or decoding data. It's like letting a server place food wherever they feel, without a proper layout!

What to do

An attacker could potentially read or even overwrite sensitive areas of memory, which might lead to unexpected behavior or crashes. This could compromise data integrity or expose sensitive information, making it crucial to address! Upgrade to the latest version of Contiki-NG to ensure that this vulnerability is patched. Ensure all input/output buffers are properly checked before use to prevent any out-of-bounds access. Time to audit your code! You've got this! With a few updates, you'll be well on your way to a more secure system! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01478 · 73.7th percentile
Published
2020-08-18T15:27Z
EPSS history
Timeline
  • 18 AUG 15:27Z
    Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder
    cvelistv5