CVE-2018-20679: High severity Advantech Spectre RT ERT351 firmware Versions 5.1.3 and prior vulnerability

Published Jan 9, 2019
·
Updated

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcpgetoption() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

Affected Software

7 affected componentsFixes available
Advantech Spectre RT ERT351 firmware Versions 5.1.3 and prior
Busybox Busybox<1.30.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
debian/busybox
1:1.30.1-61:1.30.1-6+deb11u11:1.35.0-4+deb12u11:1.37.0-61:1.37.0-10.1

Remediation

Patch Available

https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c

Event History

Jan 9, 2019
CVE Published
via MITRE·04:00 PM
Data Sourced
via MITRE·04:00 PM
Description
Data Sourced
via NVD·04:29 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:00 PM
Description
Feb 19, 2026
Data Sourced
via Ubuntu·12:41 AM
RemedyDescriptionSeverityAffected Software
May 26, 2026
Data Sourced
via Debian·03:35 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2018-20679?

CVE-2018-20679 is a vulnerability in BusyBox before version 1.30.0 that allows a remote attacker to leak sensitive information from the stack.

2

How severe is CVE-2018-20679?

CVE-2018-20679 has a severity rating of 7.5 (high).

3

What is the affected software?

The affected software is BusyBox before version 1.30.0 on various Ubuntu and Canonical Ubuntu Linux versions.

4

How can I fix CVE-2018-20679?

To fix CVE-2018-20679, update BusyBox to version 1.30.0 or later.

5

Where can I find more information about CVE-2018-20679?

You can find more information about CVE-2018-20679 at the following references: [1] [2] [3].

Company

Resources

Contact

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