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

20 affected componentsFixes available
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
redhat/firefox<115.8
115.8
redhat/thunderbird<115.8
115.8
debian/firefox-esr<115.8.0esr-1~deb12u1
115.8.0esr-1~deb12u1
debian/firefox-esr<115.8.0esr-1
115.8.0esr-1
debian/firefox-esr<115.8.0esr-1
115.8.0esr-1
debian/thunderbird<1:115.8.0-1~deb12u1
1:115.8.0-1~deb12u1
debian/thunderbird<1:115.8.0-1
1:115.8.0-1
debian/thunderbird<1:115.8.0-1
1:115.8.0-1
alpine/firefox-esr<115.8.0-r0
115.8.0-r0
alpine/firefox-esr<115.8.0-r0
115.8.0-r0
debian/firefox
160.0-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.7.0esr-1~deb12u1140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.7.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.6.0esr-1~deb12u21:140.12.0esr-1~deb13u11:153.6.0esr-1~deb13u11:153.5.0esr-11:153.7.0esr-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 redhat/firefox to a version that resolves this vulnerability.

    Fixed in 115.8
  5. Upgrade

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

    Fixed in 115.8
  6. Upgrade

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

    Fixed in 115.8.0esr-1~deb12u1
  7. Upgrade

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

    Fixed in 115.8.0esr-1
  8. Upgrade

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

    Fixed in 1:115.8.0-1~deb12u1
  9. Upgrade

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

    Fixed in 1:115.8.0-1
  10. Upgrade

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

    Fixed in 115.8.0-r0
  11. Upgrade

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

    Fixed in 160.0-1
  12. Upgrade

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

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.7.0esr-1~deb12u1Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.7.0esr-1
  13. Upgrade

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

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.7.0esr-1

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

Parent advisories

This vulnerability appears in the following advisories.

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.

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