CVE-2013-1415

krb5: PKINIT null pointer deref leads to DoS (pkinit_check_kdc_pkid())

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request.

La función pkinit_check_kdc_pkid en plugins / PREAUTH / pkinit / pkinit_crypto_openssl.c en la aplicación PKINIT en el Centro de distribución de claves (KDC) en MIT Kerberos 5 (alias krb5) antes de v1.10.4 y 1.11.x antes de v1.11.1 no trata correctamente los errores durante la extracción de los campos de un certificado X.509, que permite a atacantes remotos provocar una denegación de servicio (desreferencia puntero NULL y la caída del demonio) a través de un formato incorrecto KRB5_PADATA_PK_AS_REQ AS-REQ petición.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-01-24 CVE Reserved
2013-03-03 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (10)

URL	Tag	Source
http://secunia.com/advisories/55040	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e	2021-02-02

URL	Date	SRC
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7570	2021-02-02
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7577	2021-02-02
http://lists.opensuse.org/opensuse-updates/2013-03/msg00090.html	2021-02-02
http://web.mit.edu/kerberos/www/krb5-1.10	2021-02-02
http://web.mit.edu/kerberos/www/krb5-1.11	2021-02-02
http://www.mandriva.com/security/advisories?name=MDVSA-2013:157	2021-02-02
https://access.redhat.com/security/cve/CVE-2013-1415	2013-03-18
https://bugzilla.redhat.com/show_bug.cgi?id=914749	2013-03-18

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"				< 1.10.4 Search vendor "Mit" for product "Kerberos 5" and version " < 1.10.4"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.11 Search vendor "Mit" for product "Kerberos 5" and version "1.11"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.4 Search vendor "Opensuse" for product "Opensuse" and version "11.4"		-		Affected