// For flags

CVE-2020-0305

kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c

Severity Score

6.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-153467744

En la función cdev_get del archivo char_dev.c, se presenta un posible uso de la memoria previamente liberada debido a una condición de carrera. Esto podría conllevar a una escalada local de privilegios con los privilegios de ejecución System necesarios. No es necesaria una interacción del usuario para su explotación. Producto: Android, Versiones: Android-10, ID de Android: A-153467744

A use-after-free flaw was found in the way the Linux kernel's filesystem subsystem handled a race condition in the chrdev_open function. This flaw allows a privileged local user to starve the resources, causing a denial of service or potentially escalating their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-10-17 CVE Reserved
  • 2020-07-17 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • 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
Google
Search vendor "Google"
 Android
Search vendor "Google" for product "Android"
 10.0
Search vendor "Google" for product "Android" and version "10.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.2
Search vendor "Opensuse" for product "Leap" and version "15.2"
-
Affected