Heap-based Buffer Overflow Affecting tcpdump package, versions <14:4.9.2-3.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.64% (80th percentile)

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  • Snyk IDSNYK-RHEL7-TCPDUMP-4464501
  • published26 Jul 2021
  • disclosed7 Jul 2017

Introduced: 7 Jul 2017

CVE-2017-11108  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:7 tcpdump to version 14:4.9.2-3.el7 or higher.
This issue was patched in RHEA-2018:0705.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tcpdump package and not the tcpdump package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

tcpdump 4.9.0 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packet data. The crash occurs in the EXTRACT_16BITS function, called from the stp_print function for the Spanning Tree Protocol.