Integer Overflow or Wraparound Affecting tass-belgium/picotcp package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.83% (86th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Integer Overflow or Wraparound vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-TASSBELGIUMPICOTCP-2366765
  • published26 Jan 2022
  • disclosed11 Dec 2020
  • creditUnknown

Introduced: 11 Dec 2020

CVE-2020-17443  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for tass-belgium/picotcp.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound. An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether the ICMPv6 echo request packet's size is shorter than 8 bytes. If the size of the incoming ICMPv6 request packet is shorter than this, the operation that calculates the size of the ICMPv6 echo replies has an integer wrap around, leading to memory corruption and, eventually, Denial-of-Service in pico_icmp6_send_echoreply_not_frag in pico_icmp6.c.

CVSS Base Scores

version 3.1