CVE-2012-1014

Gentoo Linux Security Advisory 201312-12

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The process_as_req function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.10.x before 1.10.3 does not initialize a certain structure member, which allows remote attackers to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a malformed AS-REQ request.

La función process_as_req en Key Distribution Center (KDC) en MIT Kerberos 5 (también conocido como krb5) v1.10.x anteriores a v1.10.3 no inicializa ciertos miembros de la estructura de forma adecuada, lo que permite a atacantes remotos provocar una denegación de servicio (desreferencia a puntero no inicializado y caída del demonio)o posiblemente ejecutar código a través de una petición AS-REQ manipulada.

The MIT krb5 KDC (Key Distribution Center) daemon can free an uninitialized pointer while processing an unusual AS-REQ, corrupting the process heap and possibly causing the daemon to abnormally terminate. An attacker could use this vulnerability to execute malicious code, but exploiting frees of uninitialized pointers to execute code is believed to be difficult. It is possible that a legitimate client that is misconfigured in an unusual way could trigger this vulnerability. The MIT krb5 KDC daemon can dereference an uninitialized pointer while processing a malformed AS-REQ, causing the daemon to abnormally terminate. This vulnerability could theoretically lead to the execution of malicious code, but that is believed to be very difficult.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Complete

* 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
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txt	2020-01-21

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html	2020-01-21
http://www.debian.org/security/2012/dsa-2518	2020-01-21

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"				1.10 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