CVE-2024-4777: Use After Free

Published May 14, 2024
·
Updated

Last updated 24 July 2024

Other sources

Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

— Mozilla

Affected Software

18 affected componentsFixes available
Mozilla Thunderbird<115.11
115.11
Mozilla Firefox ESR<115.11
115.11
redhat/firefox<115.11
115.11
redhat/thunderbird<115.11
115.11
Mozilla Firefox<115.11.0
Mozilla Firefox<126.0
Mozilla Thunderbird<115.11.0
Debian Debian Linux=10.0
Mozilla Firefox<126
126
debian/firefox-esr<115.11.0esr-1~deb12u1
115.11.0esr-1~deb12u1
debian/firefox-esr<115.11.0esr-1
115.11.0esr-1
debian/firefox-esr<115.11.0esr-1
115.11.0esr-1
debian/thunderbird<1:115.11.0-1~deb12u1
1:115.11.0-1~deb12u1
debian/thunderbird<1:115.11.0-1
1:115.11.0-1
debian/thunderbird<1:115.11.0-1
1:115.11.0-1
debian/firefox
159.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.6.0esr-1~deb12u2140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.6.0esr-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-11:153.6.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 115.11
  2. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.11
  3. Upgrade

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

    Fixed in 115.11
  4. Upgrade

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

    Fixed in 115.11
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 126
  6. Upgrade

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

    Fixed in 115.11.0esr-1~deb12u1
  7. Upgrade

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

    Fixed in 115.11.0esr-1
  8. Upgrade

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

    Fixed in 1:115.11.0-1~deb12u1
  9. Upgrade

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

    Fixed in 1:115.11.0-1
  10. Upgrade

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

    Fixed in 159.0.1-1
  11. Upgrade

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

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1
  12. 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 1:153.6.0esr-1

Event History

May 14, 2024
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·05:21 PM
Data Sourced
via MITRE·05:21 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 PM
DescriptionSeverityAffected Software
Data Sourced
via Red Hat·06:37 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2024-4777?

CVE-2024-4777 is classified as a memory safety bug that poses a risk of arbitrary code execution.

2

How do I fix CVE-2024-4777?

To fix CVE-2024-4777, update to Firefox 126, Firefox ESR 115.11 or later, or Thunderbird 115.11 or later.

3

What products are affected by CVE-2024-4777?

CVE-2024-4777 affects Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10.

4

Is there a known exploit for CVE-2024-4777?

There is currently no public exploit for CVE-2024-4777, but its memory safety issues suggest potential for exploitation.

5

Who is the vendor for the products affected by CVE-2024-4777?

The vendor for the affected products in CVE-2024-4777 is Mozilla.

Contact

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