CVE-2009-3527
FreeBSD 6.4 - 'pipeclose()'/'knlist_cleardel()' Race Condition
Severity Score
7.0
*CVSS v3
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
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* 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
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://osvdb.org/58544 | Vdb Entry |
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/9859 | 2009-10-08 | |
| http://www.securityfocus.com/archive/1/506449 | 2024-09-17 |
| URL | Date | SRC |
|---|---|---|
| http://security.freebsd.org/advisories/FreeBSD-SA-09:13.pipe.asc | 2009-10-07 | |
| http://www.securityfocus.com/bid/36375 | 2009-10-07 | |
| http://www.securitytracker.com/id?1022982 | 2009-10-07 |
| URL | Date | SRC |
|---|
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 Search vendor "Freebsd" for product "Freebsd" | 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
| ||||||