Description
Cisco IOS 12.0, 12.1, and 12.2, when GRE IP tunneling is used and the RFC2784 compliance fixes are missing, does not verify the offset field of a GRE packet during decapsulation, which leads to an integer overflow that references data from incorrect memory locations, which allows remote attackers to inject crafted packets into the routing queue, possibly bypassing intended router ACLs.
Published: 2006-09-09
Score: 2.6 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2006-4638 Cisco IOS 12.0, 12.1, and 12.2, when GRE IP tunneling is used and the RFC2784 compliance fixes are missing, does not verify the offset field of a GRE packet during decapsulation, which leads to an integer overflow that references data from incorrect memory locations, which allows remote attackers to inject crafted packets into the routing queue, possibly bypassing intended router ACLs.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T19:23:40.441Z

Reserved: 2006-09-08T00:00:00.000Z

Link: CVE-2006-4650

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2006-09-09T00:04:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2006-4650

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses