CVE-2024-1549: Medium severity Mozilla Thunderbird vulnerability

Published Feb 20, 2024
·
Updated

If a website set a large custom cursor, portions of the cursor could have overlapped with the permission dialog, potentially resulting in user confusion and unexpected granted permissions.

Affected Software

12 affected componentsFixes available
redhat/firefox<115.8
115.8
redhat/thunderbird<115.8
115.8
Mozilla Thunderbird<115.8
115.8
Mozilla Firefox<123
123
Mozilla Firefox ESR<115.8
115.8
Mozilla Firefox<115.8.0
Mozilla Firefox<123.0
Mozilla Thunderbird<115.8.0
Debian Debian Linux=10.0
debian/firefox
137.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1128.9.0esr-1~deb11u1128.8.0esr-1~deb12u1128.9.0esr-1~deb12u1128.9.0esr-2
debian/thunderbird
1:115.12.0-1~deb11u11:128.9.0esr-1~deb11u11:128.8.0esr-1~deb12u11:128.9.0esr-1~deb12u11:128.9.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 115.8
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 123
  3. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.8
  4. Upgrade

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

    Fixed in 137.0.2-1
  5. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 115.14.0esr-1~deb11u1Fixed in 128.9.0esr-1~deb11u1Fixed in 128.8.0esr-1~deb12u1Fixed in 128.9.0esr-1~deb12u1Fixed in 128.9.0esr-2
  6. Upgrade

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

    Fixed in 1:115.12.0-1~deb11u1Fixed in 1:128.9.0esr-1~deb11u1Fixed in 1:128.8.0esr-1~deb12u1Fixed in 1:128.9.0esr-1~deb12u1Fixed in 1:128.9.0esr-1
  7. Upgrade

    Upgrade redhat/firefox to a version that resolves this vulnerability.

    Fixed in 115.8
  8. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 115.8

Event History

Feb 20, 2024
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·01:21 PM
Data Sourced
via MITRE·01:21 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityAffected Software
Feb 21, 2024
Data Sourced
via Red Hat·04:21 PM
DescriptionSeverityAffected Software
Mar 29, 2024
Data Sourced
via Launchpad·05:05 AM
Description
Sep 13, 2024
Data Sourced
via Ubuntu·05:31 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-1549?

CVE-2024-1549 has a medium severity rating due to the potential for user confusion and unintended permission grants.

2

How do I fix CVE-2024-1549?

To fix CVE-2024-1549, update your Firefox or Thunderbird to the latest version that resolves the issue, specifically versions after 115.8 or 123 for Firefox.

3

What software is affected by CVE-2024-1549?

CVE-2024-1549 affects Firefox ESR and Thunderbird prior to version 115.8, as well as Firefox versions prior to 123.

4

What impact does CVE-2024-1549 have on users?

CVE-2024-1549 can lead to user confusion as large custom cursors may overlap with important permission dialogs.

5

Is CVE-2024-1549 easy to exploit?

CVE-2024-1549 is not considered easy to exploit since it requires specific conditions involving custom cursors on a website.

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