// For flags

CVE-2024-39920

 

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

The TCP protocol in RFC 9293 has a timing side channel that makes it easier for remote attackers to infer the content of one TCP connection from a client system (to any server), when that client system is concurrently obtaining TCP data at a slow rate from an attacker-controlled server, aka the "SnailLoad" issue. For example, the attack can begin by measuring RTTs via the TCP segments whose role is to provide an ACK control bit and an Acknowledgment Number.

El protocolo TCP en RFC 9293 tiene un canal lateral de temporización que facilita a atacantes remotos inferir el contenido de una conexión TCP desde un sistema cliente (a cualquier servidor), cuando ese sistema cliente está obteniendo simultáneamente datos TCP a una velocidad lenta desde un servidor controlado por un atacante, también conocido como el problema "SnailLoad". Por ejemplo, el ataque puede comenzar midiendo los RTT a través de los segmentos TCP cuya función es proporcionar un bit de control ACK y un número de reconocimiento.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-07-03 CVE Reserved
  • 2024-07-03 CVE Published
  • 2024-08-05 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1255: Comparison Logic is Vulnerable to Power Side-Channel Attacks
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ietf
Search vendor "Ietf"
 Tcp
Search vendor "Ietf" for product "Tcp"
*-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
*-
Affected