CVE-2010-1322

krb5: KDC uninitialized pointer crash in authorization data handling (MITKRB5-SA-2010-006)

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.

La función merge_authdata en kdc_authdata.c en el Key Distribution Center (KDC) en MIT Kerberos 5 (también conocido como krb5) v1.8.x anterior a v1.8.4 no maneja correctamente un índice en una lista de autorizaciones de datos, lo cual permite a atacantes remotos provocar una denegación de servicio (caída del servicio), o posiblemente obtener información sensible, falsificación de autorización, o ejecutar código arbitrario mediante una solicitud TGS, como lo demuestra una petición de un cliente de Windows Active Directory.

*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

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2010-04-08 CVE Reserved
2010-10-07 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (10)

URL	Tag	Source
http://www.securityfocus.com/archive/1/514144/100/0/threaded	Mailing List
http://www.vupen.com/english/advisories/2010/2865	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-006.txt	2020-01-21
http://www.securityfocus.com/bid/43756	2020-01-21

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html	2020-01-21
http://www.mandriva.com/security/advisories?name=MDVSA-2010:202	2020-01-21
http://www.redhat.com/support/errata/RHSA-2010-0863.html	2020-01-21
http://www.ubuntu.com/usn/USN-999-1	2020-01-21
https://access.redhat.com/security/cve/CVE-2010-1322	2010-11-10
https://bugzilla.redhat.com/show_bug.cgi?id=636335	2010-11-10

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