1. Ubuntu Security Notices
  2. USN-5331-2

USN-5331-2: tcpdump vulnerabilities

Publication date

11 April 2022

Overview

Several security issues were fixed in tcpdump.

Releases

Packages

  • tcpdump - command-line network traffic analyzer

Details

USN-5331-1 fixed several vulnerabilities in tcpdump. This update provides
the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:
It was discovered that tcpdump incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service,
or possibly execute arbitrary code. (CVE-2018-16301)

It was discovered that tcpdump incorrectly handled certain captured data.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-8037)

USN-5331-1 fixed several vulnerabilities in tcpdump. This update provides
the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:
It was discovered that tcpdump incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service,
or possibly execute arbitrary code. (CVE-2018-16301)

It was discovered that tcpdump incorrectly handled certain captured data.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-8037)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal tcpdump –  4.9.3-4ubuntu0.1
18.04 bionic tcpdump –  4.9.3-0ubuntu0.18.04.2

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References

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