CVE-2018-19519

tcpdump: Stack-based buffer over-read in print-hncp.c:print_prefix() via crafted pcap

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Severity

Low

Red Hat Product Security

4.3

CVSS 3.0

Review impact separately from score.

Published · December 3, 2018

Updated · November 22, 2025

Description

In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.

Statement

This issue affects the versions of tcpdump as shipped with Red Hat Enterprise Linux 7.

This issue did not affect the versions of tcpdump as shipped with Red Hat Enterprise Linux 5 and 6.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CWE-125 · Out-of-bounds Read