CVE-2020-24339
First published: Fri Dec 11 2020(Updated: )
An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The DNS domain name record decompression functionality in pico_dns_decompress_name() in pico_dns_common.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 reads that lead to Denial-of-Service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Altran picoTCP | <=1.7.0 | |
| Altran Picotcp-ng | <=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 severity of CVE-2020-24339?
The severity of CVE-2020-24339 is high.
What is the affected software for CVE-2020-24339?
The affected software for CVE-2020-24339 is Altran picoTCP and Altran Picotcp-ng versions up to and including 1.7.0.
How does CVE-2020-24339 impact the DNS domain name record decompression functionality?
CVE-2020-24339 does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing a vulnerability.
Is there a fix available for CVE-2020-24339?
It is recommended to update to picoTCP and picoTCP-NG versions above 1.7.0 to fix CVE-2020-24339.
What is the Common Weakness Enumeration (CWE) ID for CVE-2020-24339?
The CWE ID for CVE-2020-24339 is CWE-125.
- collector/nvd-index
- agent/type
- agent/first-publish-date
- agent/last-modified-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
- canonical/altran picotcp-ng
- version/altran picotcp-ng/1.7.0
- 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