CVEvulnerability

CVE-2003-0795

5.0 MEDIUM Published 2003-12-15 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2003-12-15
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20

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 configurations

• gnu zebra 0.91a • gnu zebra 0.92a • gnu zebra 0.93a • gnu zebra 0.93b • quagga quagga (<= 0.96.3) • quagga quagga 0.95 • quagga quagga 0.96 • quagga quagga 0.96.1 • quagga quagga 0.96.2 • sgi propack 2.2.1 • sgi propack 2.3

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References