// For flags

CVE-2024-26708

mptcp: really cope with fastopen race

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved:

mptcp: really cope with fastopen race

Fastopen and PM-trigger subflow shutdown can race, as reported by
syzkaller.

In my first attempt to close such race, I missed the fact that
the subflow status can change again before the subflow_state_change
callback is invoked.

Address the issue additionally copying with all the states directly
reachable from TCP_FIN_WAIT1.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: realmente se adapta a la ejecución fastopen. El cierre del subflujo Fastopen y PM-trigger puede correr, según lo informado por syzkaller. En mi primer intento de cerrar dicha ejecución, me perdí el hecho de que el estado del subflujo puede cambiar nuevamente antes de que se invoque la devolución de llamada subflow_state_change. Solucione el problema copiando adicionalmente todos los estados a los que se puede acceder directamente desde TCP_FIN_WAIT1.

*Credits: N/A
CVSS Scores
Attack Vector
-
Attack Complexity
-
Privileges Required
-
User Interaction
-
Scope
-
Confidentiality
-
Integrity
-
Availability
-
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-19 CVE Reserved
  • 2024-04-03 CVE Published
  • 2024-04-04 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.2 < 6.6.18
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2 < 6.6.18"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.2 < 6.7.6
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2 < 6.7.6"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.2 < 6.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2 < 6.8"
en
Affected