CVE-2006-4520

iDEFENSE Security Advisory 2007-04-26.1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

ncp in Novell eDirectory before 8.7.3 SP9, and 8.8.x before 8.8.1 FTF2, does not properly handle NCP fragments with a negative length, which allows remote attackers to cause a denial of service (daemon crash) when the heap is written to a log file.

ncp en Novell eDirectory anterior a 8.7.3 SP9, y 8.8.x anterior a 8.8.1 FTF2, no maneja adecuadamente fragmentos NCP con una longitud negativa, lo cual permite a atacantes remotos provocar una denegación de servicio (caída del demonio) cuando el montón se escribe a un fichero de registro de eventos.

Remote exploitation of a denial of service (DoS) vulnerability in Novell Inc.'s eDirectory product could allow an attacker to force the running daemon to cease servicing requests. The problem specifically exists within the NCP functionality of eDirectory. Sending a sequence of specially crafted fragmented requests will cause a DoS condition. iDefense has confirmed the existence of this vulnerability in version 8.8.1 of Novell Inc.'s eDirectory server with FTF1 applied. The earliest version tested was 8.8. Earlier versions are suspected to be vulnerable.

*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

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2006-08-31 CVE Reserved
2007-04-30 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/23685	Vdb Entry
http://www.securitytracker.com/id?1017972	Vdb Entry
http://www.vupen.com/english/advisories/2007/1550	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/33921	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.novell.com/support/search.do?cmd=displayKC&docType=kc&externalId=3924657&sliceId=SAL_Public	2017-07-20

URL	Date	SRC
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=518	2017-07-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Novell Search vendor "Novell"		Edirectory Search vendor "Novell" for product "Edirectory"				<= 8.7.3.8 Search vendor "Novell" for product "Edirectory" and version " <= 8.7.3.8"		-		Affected
Novell Search vendor "Novell"		Edirectory Search vendor "Novell" for product "Edirectory"				8.8 Search vendor "Novell" for product "Edirectory" and version "8.8"		-		Affected
Novell Search vendor "Novell"		Edirectory Search vendor "Novell" for product "Edirectory"				8.8.1 Search vendor "Novell" for product "Edirectory" and version "8.8.1"		-		Affected