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CVE-2003-0795

nvd nist
Published: Dec 15, 2003Modified: Apr 16, 2026

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5.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Exploitability: 10.0 / Impact: 2.9
Source: NVD

Description

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.

Affected (11)

Products: Gnu: Zebra · Quagga: Quagga · Sgi: Propack
Gnu
1 product
Zebra
Quagga
1 product
Quagga
Sgi
1 product
Propack
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Gnu
Zebra
Version 0.91a
Zebra
Version 0.92a
Zebra
Version 0.93a
Zebra
Version 0.93b
Quagga
Quagga
Up to 0.96.3
Quagga
Version 0.95
Quagga
Version 0.96.1
Quagga
Version 0.96.2
Quagga
Version 0.96
Sgi
Propack
Version 2.2.1
Propack
Version 2.3

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (10)

Source: cve@mitre.org
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.