Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2003-0795

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.

Published

2003-12-15T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu zebra 0.91a Yes
Application gnu zebra 0.92a Yes
Application gnu zebra 0.93a Yes
Application gnu zebra 0.93b Yes
Application quagga quagga ≤ 0.96.3 Yes
Application quagga quagga 0.95 Yes
Application quagga quagga 0.96 Yes
Application quagga quagga 0.96.1 Yes
Application quagga quagga 0.96.2 Yes
Application sgi propack 2.2.1 Yes
Application sgi propack 2.3 Yes
References