// For flags

CVE-2020-17442

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se detectó un problema en picoTCP versión 1.7.0. El código para analizar los encabezados de extensión IPv6 hop-by-hop no comprueba los límites del valor de longitud del encabezado de extensión, lo que puede resultar en un ajuste integral. Por lo tanto, un valor de longitud de encabezado de extensión diseñado puede causar Denegación de Servicio porque afecta el bucle en el que se analizan los encabezados de extensión en la función pico_ipv6_process_hopbyhop() en el archivo pico_ipv6.c

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-07 CVE Reserved
  • 2020-12-11 CVE Published
  • 2023-08-27 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-190: Integer Overflow or Wraparound
CAPEC
References (2)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Altran
Search vendor "Altran"
Picotcp
Search vendor "Altran" for product "Picotcp"
<= 1.7.0
Search vendor "Altran" for product "Picotcp" and version " <= 1.7.0"
-
Affected