CVE Database


Impact: Moderate
Public: 2012-09-04
Bugzilla: 859002: CVE-2012-4436 fwknop (client): Buffer overflow by --last command line argument by processing of a specially-crafted ~/


The MITRE CVE dictionary describes this issue as:

Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many arguments.

Find out more about CVE-2012-4436 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

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External References

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For clarification or corrections please contact the Red Hat Security Response Team.