CVE-2003-0795 — MEDIUM severity vulnerability (The vty layer in Quagga before 0.96.4, and Zebra 0.93b and e)
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.
| CVE ID | CVE-2003-0795 |
|---|---|
| Severity | MEDIUM |
| CVSS score | 5.0 |
| CVSS vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| CWE | CWE-20 |
| Status | Modified |
| Published | 2003-12-15 |
| Last modified | 2026-04-16 |
| 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. |
| Source | NIST National Vulnerability Database |
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