// For flags

CVE-2012-3547

freeradius: stack-based buffer overflow via long expiration date fields in client X509 certificates

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Stack-based buffer overflow in the cbtls_verify function in FreeRADIUS 2.1.10 through 2.1.12, when using TLS-based EAP methods, allows remote attackers to cause a denial of service (server crash) and possibly execute arbitrary code via a long "not after" timestamp in a client certificate.

Desbordamiento de búfer basado en pila en la función cbtls_verify en FreeRADIUS v2.1.10 hasta la v2.1.12, cuando se usan los métodos TLS-based EAP, permite a atacantes remotos provocar una denegación de servicio (caída del servidor) y posiblemente ejecutar código a través de un sellado de tiempo "not after" largo, en un certificado de un cliente.

Multiple vulnerabilities have been found in FreeRADIUS, the worst of which allow execution of arbitrary code or Denial of Service. Versions less than 2.2.0 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2012-06-14 CVE Reserved
  • 2012-09-18 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-121: Stack-based Buffer Overflow
CAPEC
References (22)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Freeradius
Search vendor "Freeradius"
Freeradius
Search vendor "Freeradius" for product "Freeradius"
2.1.10
Search vendor "Freeradius" for product "Freeradius" and version "2.1.10"
-
Affected
Freeradius
Search vendor "Freeradius"
Freeradius
Search vendor "Freeradius" for product "Freeradius"
2.1.11
Search vendor "Freeradius" for product "Freeradius" and version "2.1.11"
-
Affected
Freeradius
Search vendor "Freeradius"
Freeradius
Search vendor "Freeradius" for product "Freeradius"
2.1.12
Search vendor "Freeradius" for product "Freeradius" and version "2.1.12"
-
Affected