CVE-2020-24338: Critical severity altran picotcp-ng vulnerability

Published Dec 11, 2020
·
Updated

An issue was discovered in picoTCP through 1.7.0. The DNS domain name record decompression functionality in picodnsdecompressname() in picodnscommon.c does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing out-of-bounds writes that lead to Denial-of-Service and Remote Code Execution.

Affected Software

9 affected components
Altran picoTCP<=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·10:45 PM
Data Sourced
via MITRE·10:45 PM
Description

Parent advisories

This vulnerability appears in the following advisories.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2020-24338.

2

What is the severity of CVE-2020-24338?

The severity of CVE-2020-24338 is critical with a CVSS score of 9.8.

3

What software is affected by CVE-2020-24338?

The affected software is Altran picoTCP version up to and including 1.7.0.

4

What is the CWE ID for CVE-2020-24338?

The CWE ID for CVE-2020-24338 is CWE-787.

5

Is there any additional information about CVE-2020-24338?

Yes, you can find more information about CVE-2020-24338 on the following references: [US-CERT Advisory](https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01) and [CERT Vulnerability Note](https://www.kb.cert.org/vuls/id/815128).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203