CVE-2003-0795

GNU Zebra 0.9x / Quagga 0.96 - Remote Denial of Service

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing the SE marker, which allows remote attackers to cause a denial of service (crash) via a malformed telnet command to the telnet CLI port, which may trigger a null dereference.

La capa vty en Quagga anteriores a 0.96.4, y Zebra anteriores a 0.91, no verifica si se está llevando a cabo una sub-negociación cuando procesa el marcador SE, lo que permite a atacantes remotos causar una denegación de servicio (caída) mediante un comando telnet malformado al puerto telnet CLI, lo que puede disparar una desreferencia de memoria nula.

*Credits: N/A

CVSS Scores

NISTv2 5.0

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

2003-09-17 CVE Reserved
2003-11-12 First Exploit
2003-11-18 CVE Published
2024-08-08 CVE Updated
2024-09-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (8)

URL	Tag	Source
http://marc.info/?l=bugtraq&m=106883387304266&w=2	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/23375	2003-11-12

URL	Date	SRC
http://www.debian.org/security/2004/dsa-415	2016-10-18
http://www.redhat.com/support/errata/RHSA-2003-305.html	2016-10-18
http://www.redhat.com/support/errata/RHSA-2003-307.html	2016-10-18

URL	Date	SRC
http://secunia.com/advisories/10563	2016-10-18
https://access.redhat.com/security/cve/CVE-2003-0795	2003-11-13
https://bugzilla.redhat.com/show_bug.cgi?id=1617088	2003-11-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Zebra Search vendor "Gnu" for product "Zebra"				0.91a Search vendor "Gnu" for product "Zebra" and version "0.91a"		-		Affected
Gnu Search vendor "Gnu"		Zebra Search vendor "Gnu" for product "Zebra"				0.92a Search vendor "Gnu" for product "Zebra" and version "0.92a"		-		Affected
Gnu Search vendor "Gnu"		Zebra Search vendor "Gnu" for product "Zebra"				0.93a Search vendor "Gnu" for product "Zebra" and version "0.93a"		-		Affected
Gnu Search vendor "Gnu"		Zebra Search vendor "Gnu" for product "Zebra"				0.93b Search vendor "Gnu" for product "Zebra" and version "0.93b"		-		Affected
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				<= 0.96.3 Search vendor "Quagga" for product "Quagga" and version " <= 0.96.3"		-		Affected
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				0.95 Search vendor "Quagga" for product "Quagga" and version "0.95"		-		Affected
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				0.96 Search vendor "Quagga" for product "Quagga" and version "0.96"		-		Affected
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				0.96.1 Search vendor "Quagga" for product "Quagga" and version "0.96.1"		-		Affected
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				0.96.2 Search vendor "Quagga" for product "Quagga" and version "0.96.2"		-		Affected
Sgi Search vendor "Sgi"		Propack Search vendor "Sgi" for product "Propack"				2.2.1 Search vendor "Sgi" for product "Propack" and version "2.2.1"		-		Affected
Sgi Search vendor "Sgi"		Propack Search vendor "Sgi" for product "Propack"				2.3 Search vendor "Sgi" for product "Propack" and version "2.3"		-		Affected