CVE-2020-17441: Input Validation
First published: Fri Dec 11 2020(Updated: )
An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Altran picoTCP | <=1.7.0 | |
| Microchip Mplab Harmony | >=3.0.0<3.7.0 | |
| 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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2020-17441?
CVE-2020-17441 is a vulnerability in picoTCP 1.7.0 that allows for an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in Denial-of-Service or other possible impacts.
What is the severity of CVE-2020-17441?
CVE-2020-17441 has a severity rating of 9.1 (critical).
How does CVE-2020-17441 affect Altran picoTCP?
CVE-2020-17441 affects Altran picoTCP version 1.7.0 and can result in Denial-of-Service or other possible impacts.
How does CVE-2020-17441 affect Microchip Mplab Harmony?
CVE-2020-17441 affects Microchip Mplab Harmony versions from 3.0.0 to 3.7.0 and can result in Denial-of-Service or other possible impacts.
How can I fix CVE-2020-17441 in Altran picoTCP?
To fix CVE-2020-17441 in Altran picoTCP, update to a version higher than 1.7.0.
How can I fix CVE-2020-17441 in Microchip Mplab Harmony?
To fix CVE-2020-17441 in Microchip Mplab Harmony, update to a version higher than 3.7.0.
- collector/nvd-index
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/ics-cert-advisory
- source/ICS
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- agent/author
- agent/references
- agent/softwarecombine
- agent/tags
- agent/event
- agent/description
- collector/mitre-cve
- source/MITRE
- vendor/altran
- canonical/altran picotcp
- version/altran picotcp/1.7.0
- vendor/microchip
- canonical/microchip mplab harmony
- version/microchip mplab harmony/3.0.0
- vendor/multiple (open source)
- canonical/multiple (open source) picotcp-ng, version 1.7.0 and prior
- canonical/multiple (open source) picotcp (eol), version 1.7.0 and prior
- canonical/multiple (open source) fnet, version 4.6.3
- canonical/multiple (open source) nut/net, version 5.1 and prior