// For flags

CVE-2009-3527

FreeBSD 6.4 - 'pipeclose()'/'knlist_cleardel()' Race Condition

Severity Score

6.9
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Race condition in the Pipe (IPC) close function in FreeBSD 6.3 and 6.4 allows local users to cause a denial of service (crash) or gain privileges via vectors related to kqueues, which triggers a use after free, leading to a NULL pointer dereference or memory corruption.

Condición de carrera en la función Close Pipe (IPC)en FreeBSD v6.3 y v6.4, permite a usuarios locales provocar una denegación de servicio (caída) u obtener privilegios a través de vectores relacionados con "kqueues", lo que provoca una liberación después del uso , aprovechando una deferencia a puntero NULL o una corrupción de memoria.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2009-10-02 CVE Reserved
  • 2009-10-06 CVE Published
  • 2009-10-08 First Exploit
  • 2024-09-17 CVE Updated
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Freebsd
Search vendor "Freebsd"
Freebsd
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6.3
Search vendor "Freebsd" for product "Freebsd" and version "6.3"
-
Affected
Freebsd
Search vendor "Freebsd"
Freebsd
Search vendor "Freebsd" for product "Freebsd"
6.4
Search vendor "Freebsd" for product "Freebsd" and version "6.4"
-
Affected