CVE-2018-16451: Critical severity Apple macOS Catalina vulnerability

Published Oct 3, 2019
·
Updated

Last updated 25 August 2025

Other sources

tcpdump. Multiple issues were addressed by updating to tcpdump version 4.9.3 and libpcap version 1.9.1

The SMB parser in tcpdump before 4.9.3 has buffer over-reads in print-smb.c:printtrans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.

— Launchpad

Credit

CVE-2017-16808, CVE-2018-10103, CVE-2018-10105, CVE-2018-14461, CVE-2018-14462, CVE-2018-14463, CVE-2018-14464, CVE-2018-14465, CVE-2018-14466, CVE-2018-14467, CVE-2018-14468, CVE-2018-14469, CVE-2018-14470, CVE-2018-14879, CVE-2018-14880, CVE-2018-14881, CVE-2018-14882, CVE-2018-16227, CVE-2018-16228, CVE-2018-16229, CVE-2018-16230, CVE-2018-16300, CVE-2018-16301, CVE-2018-16451, CVE-2018-16452, CVE-2019-15166, CVE-2019-15167

Affected Software

16 affected componentsFixes available
Apple macOS Catalina<10.15.2
10.15.2
Apple Mojave
Apple High Sierra
tcpdump tcpdump<4.9.3
Apple iOS and macOS<10.15.2
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=29
Fedoraproject Fedora=30
Fedoraproject Fedora=31
openSUSE Leap=15.0
openSUSE Leap=15.1
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
debian/tcpdump
4.99.0-2+deb11u14.99.3-14.99.5-24.99.6-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade macOS Catalina to a version that resolves this vulnerability.

    Fixed in 10.15.2
  2. Upgrade

    Upgrade debian/tcpdump to a version that resolves this vulnerability.

    Fixed in 4.99.0-2+deb11u1Fixed in 4.99.3-1Fixed in 4.99.5-2Fixed in 4.99.6-2
  3. Upgrade

    Upgrade tcpdump to a version that resolves this vulnerability.

    Fixed in 4.9.3
  4. Upgrade

    Upgrade libpcap to a version that resolves this vulnerability.

    Fixed in 1.9.1

Event History

Oct 3, 2019
CVE Published
via MITRE·03:57 PM
Data Sourced
via MITRE·03:57 PM
Description
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Dec 4, 2025
Data Sourced
via Ubuntu·06:59 PM
RemedyDescriptionSeverityAffected Software
Feb 19, 2026
Data Sourced
via Launchpad·09:49 PM
Description
Mar 8, 2026
Data Sourced
via Debian·10:03 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2018-16451?

CVE-2018-16451 is a vulnerability in tcpdump that allows buffer over-reads in print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.

2

What is the severity of CVE-2018-16451?

The severity of CVE-2018-16451 is not specified in the information provided.

3

How can I fix CVE-2018-16451?

To fix CVE-2018-16451, update tcpdump to version 4.9.3 or later.

4

Where can I find more information about CVE-2018-16451?

You can find more information about CVE-2018-16451 at the following references: [1] [2] [3].

5

Which software versions are affected by CVE-2018-16451?

tcpdump versions before 4.9.3 are affected by CVE-2018-16451.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203