CVE-2003-0795
GNU Zebra 0.9x / Quagga 0.96 - Remote Denial of Service
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*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
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* 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
- 2025-03-30 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
| ||||||