// For flags

CVE-2020-35512

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors

Se encontró un fallo de uso de la memoria previamente liberada D-Bus rama de desarrollo versiones iguales o anteriores a 1.13.16, dbus-1.12.x rama estable versiones iguales o anteriores a 1.12.18, y dbus-1.10.x y ramas anteriores versiones iguales o anteriores a 1.10.30 cuando un sistema tiene múltiples nombres de usuario que comparten el mismo UID. Cuando un conjunto de reglas de política hace referencia a estos nombres de usuario, D-Bus puede liberar algo de memoria en la pila, que sigue siendo utilizada por las estructuras de datos necesarias para los otros nombres de usuario que comparten el UID, lo que puede provocar un fallo u otros comportamientos indefinidos

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-02-15 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Freedesktop
Search vendor "Freedesktop"
 Dbus
Search vendor "Freedesktop" for product "Dbus"
 1.12.20
Search vendor "Freedesktop" for product "Dbus" and version "1.12.20"
-
Affected
in Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
--
Safe