// For flags

CVE-2021-47086

phonet/pep: refuse to enable an unbound pipe

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:

phonet/pep: refuse to enable an unbound pipe

This ioctl() implicitly assumed that the socket was already bound to
a valid local socket name, i.e. Phonet object. If the socket was not
bound, two separate problems would occur:

1) We'd send an pipe enablement request with an invalid source object.
2) Later socket calls could BUG on the socket unexpectedly being
connected yet not bound to a valid object.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: phonet/pep: se niega a habilitar una tubería independiente. Este ioctl() supone implícitamente que el socket ya estaba vinculado a un nombre de socket local válido, es decir, objeto Phonet. Si el socket no estuviera vinculado, se producirían dos problemas distintos: 1) Enviamos una solicitud de habilitación de canalización con un objeto fuente no válido. 2) Las llamadas de socket posteriores podrían ERROR en el socket que se conecta inesperadamente pero no está vinculado a un objeto válido.

*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
  • 2024-02-29 CVE Reserved
  • 2024-03-04 CVE Published
  • 2024-03-05 EPSS Updated
  • 2024-12-19 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"
< 4.4.297
Search vendor "Linux" for product "Linux Kernel" and version " < 4.4.297"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 4.9.295
Search vendor "Linux" for product "Linux Kernel" and version " < 4.9.295"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 4.14.260
Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.260"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 4.19.223
Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.223"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.4.169
Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.169"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.10.89
Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.89"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.15.12
Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.12"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.16
Search vendor "Linux" for product "Linux Kernel" and version " < 5.16"
en
Affected