CVE-2020-17442: Integer Overflow
First published: Fri Dec 11 2020(Updated: )
An issue was discovered in picoTCP 1.7.0. The code for parsing the hop-by-hop IPv6 extension headers does not validate the bounds of the extension header length value, which may result in Integer Wraparound. Therefore, a crafted extension header length value may cause Denial-of-Service because it affects the loop in which the extension headers are parsed in pico_ipv6_process_hopbyhop() in pico_ipv6.c.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Altran picoTCP | <=1.7.0 | |
| Multiple (open source) picoTCP-NG, Version 1.7.0 and prior | ||
| Multiple (open source) picoTCP (EOL), Version 1.7.0 and prior | ||
| Multiple (open source) FNET, Version 4.6.3 | ||
| Multiple (open source) Nut/Net, Version 5.1 and prior |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-17442.
What is the severity of CVE-2020-17442?
The severity of CVE-2020-17442 is high with a CVSS score of 7.5.
What is the affected software for CVE-2020-17442?
The affected software for CVE-2020-17442 is picoTCP version 1.7.0.
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-190.
How can this vulnerability be exploited?
This vulnerability can be exploited by crafting a malicious extension header length value, which may cause a Denial-of-Service attack.
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