CVE-2014-3951

FreeBSD Security Advisory - iconv NULL Pointer Dereference

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The HZ module in the iconv implementation in FreeBSD 10.0 before p6 and NetBSD allows context-dependent attackers to cause a denial of service (NULL pointer dereference) via a crafted argument to the iconv_open function. NOTE: this issue was SPLIT per ADT2 due to different vulnerability types. CVE-2014-5384 is used for the NULL pointer dereference.

El módulo HZ en la implementación iconv en FreeBSD 10.0 anterior a p6 y NetBSD permite a atacantes dependientes de contexto causar una denegación de servicio (referencia a puntero nulo) a través de un argumento manipulado en la función iconv_open. NOTA: este problema ha sido dividido (SPLIT) por ADT2 debido a diferentes tipos de vulnerabilidad. CVE-2014-5384 se utiliza para la referencia a puntero nulo.

A NULL pointer dereference in the initialization code of the HZ module and an out of bounds array access in the initialization code of the VIQR module make iconv_open(3) calls involving HZ or VIQR result in an application crash.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

2014-06-03 CVE Reserved
2014-06-25 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
http://mail-index.netbsd.org/source-changes/2014/06/24/msg055822.html	Mailing List
http://www.securitytracker.com/id/1030458	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.freebsd.org/security/advisories/FreeBSD-SA-14:15.iconv.asc	2014-08-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				10.0 Search vendor "Freebsd" for product "Freebsd" and version "10.0"		-		Affected
Netbsd Search vendor "Netbsd"		Netbsd Search vendor "Netbsd" for product "Netbsd"				*		-		Affected