CVE-2020-24341: Critical severity altran picotcp-ng vulnerability

Published Dec 11, 2020
·
Updated

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The TCP input data processing function in picotcp.c does not validate the length of incoming TCP packets, which leads to an out-of-bounds read when assembling received packets into a data segment, eventually causing Denial-of-Service or an information leak.

Affected Software

10 affected components
Altran picoTCP<=1.7.0
Altran Picotcp-ng<=1.7.0
Multiple (open source) uIP-Contiki-OS (end-of-life [EOL]), Version 3.0 and prior
Multiple (open source) uIP-Contiki-NG, Version 4.5 and prior
Multiple (open source) uIP (EOL), Version 1.0 and prior
Multiple (open source) open-iscsi, Version 2.1.12 and prior
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

Event History

Dec 11, 2020
CVE Published
via MITRE·10:55 PM
Data Sourced
via MITRE·10:55 PM
Description

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-24341?

CVE-2020-24341 is a vulnerability in picoTCP and picoTCP-NG through 1.7.0 that allows for an out-of-bounds read and can lead to Denial-of-Service (DoS) attacks.

2

What is the severity of CVE-2020-24341?

The severity of CVE-2020-24341 is critical with a CVSS score of 9.1.

3

Which software versions are affected by CVE-2020-24341?

Versions up to and including 1.7.0 of Altran picoTCP and Altran Picotcp-ng are affected by CVE-2020-24341.

4

How can CVE-2020-24341 be exploited?

CVE-2020-24341 can be exploited by sending specially crafted TCP packets to the vulnerable system.

5

Is there a fix for CVE-2020-24341?

Yes, a fix is available for CVE-2020-24341. It is recommended to update to a patched version of picoTCP or picoTCP-NG.

Contact

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