Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2009-2872

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
28/09/2009
Last modified:
09/04/2025

Description

Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.

Impact

Vector 2.0
AV:N/AC:L/Au:S/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0da:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0db:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0dc:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sc:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sl:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sp:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0st:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sx:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sy:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0sz:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0w:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.0wc:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools