// For flags

CVE-2019-10056

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Suricata 4.1.3. The code mishandles the case of sending a network packet with the right type, such that the function DecodeEthernet in decode-ethernet.c is executed a second time. At this point, the algorithm cuts the first part of the packet and doesn't determine the current length. Specifically, if the packet is exactly 28 long, in the first iteration it subtracts 14 bytes. Then, it is working with a packet length of 14. At this point, the case distinction says it is a valid packet. After that it casts the packet, but this packet has no type, and the program crashes at the type case distinction.

Se descubrió un problema en Suricata 4.1.3. El código maneja mal el caso de enviar un paquete de red con el tipo correcto, de modo que la función DecodeEthernet en decode-ethernet.c se ejecuta por segunda vez. En este punto, el algoritmo corta la primera parte del paquete y no determina la longitud actual. Específicamente, si el paquete tiene exactamente 28 de longitud, en la primera iteración resta 14 bytes. Entonces, está trabajando con una longitud de paquete de 14. En este punto, la distinción de caso dice que es un paquete válido. Después de eso, lanza el paquete, pero este paquete no tiene tipo, y el programa se bloquea en la distinción entre mayúsculas y minúsculas.

*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
  • 2019-03-25 CVE Reserved
  • 2019-08-28 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Suricata-ids
Search vendor "Suricata-ids"
Suricata
Search vendor "Suricata-ids" for product "Suricata"
4.1.3
Search vendor "Suricata-ids" for product "Suricata" and version "4.1.3"
-
Affected
Suricata-ids
Search vendor "Suricata-ids"
Suricata
Search vendor "Suricata-ids" for product "Suricata"
4.1.4
Search vendor "Suricata-ids" for product "Suricata" and version "4.1.4"
-
Affected