// For flags

CVE-2012-1015

krb5: KDC daemon crash via free() of an uninitialized pointer

Severity Score

9.3
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.

La función kdc_handle_protected_negotiation en
Key Distribution Center (KDC) en MIT Kerberos 5 (también conocido como krb5) v1.8.x, v1.9.x anteriores a v1.9.5, y v1.10.x anteriores a v1.10.3 intenta calcula el "checksum" antes de verificar que el tipo de contraseña es apropiado para el "checksum", lo que permite a atacantes remotos ejecutar código o provocar una denegación de servicio (liberación de puntero no inicializado, corrupción de memoria dinámica y caída del demonio) a través de una petición AS-REQ.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
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
  • 2012-02-07 CVE Reserved
  • 2012-07-31 CVE Published
  • 2024-03-06 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8
Search vendor "Mit" for product "Kerberos 5" and version "1.8"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.1
Search vendor "Mit" for product "Kerberos 5" and version "1.8.1"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.2
Search vendor "Mit" for product "Kerberos 5" and version "1.8.2"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.3
Search vendor "Mit" for product "Kerberos 5" and version "1.8.3"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.4
Search vendor "Mit" for product "Kerberos 5" and version "1.8.4"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.5
Search vendor "Mit" for product "Kerberos 5" and version "1.8.5"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.8.6
Search vendor "Mit" for product "Kerberos 5" and version "1.8.6"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.9.4
Search vendor "Mit" for product "Kerberos 5" and version "1.9.4"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.10
Search vendor "Mit" for product "Kerberos 5" and version "1.10"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.10.1
Search vendor "Mit" for product "Kerberos 5" and version "1.10.1"
-
Affected
Mit
Search vendor "Mit"
 Kerberos 5
Search vendor "Mit" for product "Kerberos 5"
 1.10.2
Search vendor "Mit" for product "Kerberos 5" and version "1.10.2"
-
Affected