CVE-2021-24002: High severity thunderbird vulnerability

Published Apr 19, 2021
·
Updated

When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server.

Affected Software

9 affected componentsFixes available
debian/firefox
118.0.2-1
debian/firefox-esr
91.12.0esr-1~deb10u1115.3.1esr-1~deb10u1102.15.0esr-1~deb11u1115.3.1esr-1~deb11u1102.15.1esr-1~deb12u1115.3.0esr-1~deb12u1115.3.0esr-1
debian/thunderbird
1:91.12.0-1~deb10u11:115.3.1-1~deb10u11:102.13.1-1~deb11u11:115.3.1-1~deb11u11:102.15.1-1~deb12u11:115.3.1-1~deb12u11:115.3.1-1
Mozilla Thunderbird<78.10
78.10
Mozilla Firefox<88.0
Mozilla Firefox ESR<78.10
Mozilla Thunderbird<78.10
Mozilla Firefox<88
88
Mozilla Firefox ESR<78.10
78.10

Event History

Apr 19, 2021
CVE Published
via Mozilla·12:00 AM
Jun 24, 2021
CVE Published
via MITRE·01:20 PM
Data Sourced
via MITRE·01:20 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-24002?

CVE-2021-24002 is a vulnerability that allowed arbitrary commands to be sent to an FTP server when a user clicked on an FTP URL containing encoded newline characters.

2

Which software is affected by CVE-2021-24002?

Mozilla Thunderbird 78.10, Mozilla Firefox 88, and Mozilla Firefox ESR 78.10 are affected by CVE-2021-24002.

3

What is the severity of CVE-2021-24002?

The severity of CVE-2021-24002 is medium, with a severity value of 4.

4

How can I fix CVE-2021-24002?

To fix CVE-2021-24002, update your Mozilla Thunderbird to version 78.10, Mozilla Firefox to version 88, or Mozilla Firefox ESR to version 78.10.

5

Where can I find more information about CVE-2021-24002?

You can find more information about CVE-2021-24002 on the Mozilla Bugzilla and Mozilla Security Advisories websites.

Contact

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