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-2366769
  • published26 Jan 2022
  • disclosed11 Dec 2020
  • creditUnknown

Introduced: 11 Dec 2020

CVE-2020-17444  (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 routine for processing the next header field (and deducing whether the IPv6 extension headers are valid) doesn't check whether the header extension length field would overflow. Therefore, if it wraps around to zero, iterating through the extension headers will not increment the current data pointer. This leads to an infinite loop and Denial-of-Service in pico_ipv6_check_headers_sequence() in pico_ipv6.c.

CVSS Base Scores

version 3.1