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CVE-2020-24337 Details

Description

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. When an unsupported TCP option with zero length is provided in an incoming TCP packet, it is possible to cause a Denial-of-Service by achieving an infinite loop in the code that parses TCP options, aka tcp_parse_options() in pico_tcp.c.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	CVE	Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/815128	CVE	Third Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	[email protected]	Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/815128	[email protected]	Third Party AdvisoryUS Government Resource

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-835	Loop with Unreachable Exit Condition ('Infinite Loop')	[email protected]

Affected Products

Product	Versions
altran picotcp	<= 1.7.0
CPE cpe:2.3:a:altran:picotcp:::::::: Remediation No remediation found in references.
altran picotcp-ng	<= 1.7.0
CPE cpe:2.3:a:altran:picotcp-ng:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Dec 14, 2020	Initial Analysis	[email protected]