What is the vulnerability ID for this libpcap vulnerability?

The vulnerability ID for this libpcap vulnerability is USN-4221-1.

What is the severity of USN-4221-1?

The severity of USN-4221-1 is not specified.

How can an attacker exploit this vulnerability?

An attacker could exploit this vulnerability by causing a denial of service through memory exhaustion.

Which software versions are affected by this vulnerability?

The following software versions are affected by this vulnerability: Ubuntu 19.04 with libpcap0.8 version 1.8.1-6ubuntu1.19.04.1, Ubuntu 18.04 with libpcap0.8 version 1.8.1-6ubuntu1.18.04.1, Ubuntu 16.04 with libpcap0.8 version 1.7.4-2ubuntu0.1, and Ubuntu 14.04 with libpcap0.8 version 1.5.3-2ubuntu0.1.

How do I fix the libpcap vulnerability?

To fix the libpcap vulnerability, update to the corresponding remedy versions: 1.8.1-6ubuntu1.19.04.1 for Ubuntu 19.04, 1.8.1-6ubuntu1.18.04.1 for Ubuntu 18.04, 1.7.4-2ubuntu0.1 for Ubuntu 16.04, and 1.5.3-2ubuntu0.1 for Ubuntu 14.04.

Vulnerability/
USN-4221-1

11/12/2019

USN-4221-1: libpcap vulnerability

First published: Wed Dec 11 2019(Updated: )

It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of service (memory exhaustion).

Affected Software	Affected Version	How to fix
All of
ubuntu/libpcap0.8	<1.8.1-6ubuntu1.19.04.1	1.8.1-6ubuntu1.19.04.1
Ubuntu Ubuntu	=19.04
All of
ubuntu/libpcap0.8	<1.8.1-6ubuntu1.18.04.1	1.8.1-6ubuntu1.18.04.1
Ubuntu Ubuntu	=18.04
All of
ubuntu/libpcap0.8	<1.7.4-2ubuntu0.1	1.7.4-2ubuntu0.1
Ubuntu Ubuntu	=16.04
All of
ubuntu/libpcap0.8	<1.5.3-2ubuntu0.1	1.5.3-2ubuntu0.1
Ubuntu Ubuntu	=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2019-15165

Frequently Asked Questions

What is the vulnerability ID for this libpcap vulnerability?
The vulnerability ID for this libpcap vulnerability is USN-4221-1.
What is the severity of USN-4221-1?
The severity of USN-4221-1 is not specified.
How can an attacker exploit this vulnerability?
An attacker could exploit this vulnerability by causing a denial of service through memory exhaustion.
Which software versions are affected by this vulnerability?
The following software versions are affected by this vulnerability: Ubuntu 19.04 with libpcap0.8 version 1.8.1-6ubuntu1.19.04.1, Ubuntu 18.04 with libpcap0.8 version 1.8.1-6ubuntu1.18.04.1, Ubuntu 16.04 with libpcap0.8 version 1.7.4-2ubuntu0.1, and Ubuntu 14.04 with libpcap0.8 version 1.5.3-2ubuntu0.1.
How do I fix the libpcap vulnerability?
To fix the libpcap vulnerability, update to the corresponding remedy versions: 1.8.1-6ubuntu1.19.04.1 for Ubuntu 19.04, 1.8.1-6ubuntu1.18.04.1 for Ubuntu 18.04, 1.7.4-2ubuntu0.1 for Ubuntu 16.04, and 1.5.3-2ubuntu0.1 for Ubuntu 14.04.

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source/Ubuntu
anchor-related/USN-4221-2
agent/software-canonical-lookup
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package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu ubuntu
version/ubuntu ubuntu/19.04
version/ubuntu ubuntu/18.04
version/ubuntu ubuntu/16.04
version/ubuntu ubuntu/14.04

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