// For flags

CVE-2020-24339

 

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 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.

Se detectó un problema en picoTCP y picoTCP-NG versiones hasta 1.7.0. La funcionalidad de descompresión de registros de nombres de dominio DNS en la función pico_dns_decompress_name() en el archivo en pico_dns_common.c no comprueba los valores de desplazamiento del puntero de compresión con respecto a los datos reales presentes en un paquete de respuesta DNS, causando lecturas fuera de límites que conducen a una Denegación de Servicio

*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
  • 2020-08-13 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-125: Out-of-bounds Read
CAPEC
References (2)
URL Tag Source
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 Third Party Advisory
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
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
Altran
Search vendor "Altran"
 Picotcp-ng
Search vendor "Altran" for product "Picotcp-ng"
 <= 1.7.0
Search vendor "Altran" for product "Picotcp-ng" and version " <= 1.7.0"
-
Affected