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Status published
Medium
CVE-2003-0795
The vty layer in Quagga before 0.96.4, and Zebra 0.93b...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Affected Software
zebra, quagga, propack
Vulnerable Versions:
0.91a, 0.92a, 0.93a, 0.93b, 0, 0.95, 0.96, 0.96.1, 0.96.2, 2.2.1, 2.3
Timeline
Official Publish:
November 18th, 2003
Last Modified:
August 8th, 2024
Added to House:
July 18th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.