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CVE-2020-17442

Published: Dec 11, 2020Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-190
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.9%
Top 15.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in picoTCP 1.7.0. The code for parsing the hop-by-hop IPv6 extension headers does not validate the bounds of the extension header length value, which may result in Integer Wraparound. Therefore, a crafted extension header length value may cause Denial-of-Service because it affects the loop in which the extension headers are parsed in pico_ipv6_process_hopbyhop() in pico_ipv6.c.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-190

Affected Products

picotcpaltran
Library
OSS Libraries / generic-library
n/an/a
altranoss-projectOSS Librariesaka altran

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
us-cert.cisa.gov
https://www.kb.cert.org/vuls/id/815128
kb.cert.org
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-343-01.json
raw.githubusercontent.com
and 47 more references View all →

Timeline

Published
Dec 11, 2020
Last Updated
Nov 21, 2024

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