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CVE-2011-1956

MediumPublished

The bytes_repr_len function in Wireshark 1.4.5 uses an incorrect pointer argument, which allows remote attackers to cause a denial of service (NULL pointer...

Published: Jun 6, 2011
Updated: Aug 6, 2024
Assigning CNA: redhat
Evidence observed: Jun 17, 2011

Primary CVSS

4.3/ 10Medium

nvd · CVSS 2.0

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

EPSS probability estimate

5.9%

Low · next 30 days

Percentile: 92.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The bytes_repr_len function in Wireshark 1.4.5 uses an incorrect pointer argument, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via arbitrary TCP traffic.

Sources

Wireshark 1.4.5 - 'bytes_repr_len()' Null Pointer Dereference Denial of ServiceExploit
rouli · windows · Jun 17, 2011

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