CVE-2024-7527: Use After Free

Published Aug 6, 2024
·
Updated

Last updated 9 September 2024

Other sources

Unexpected marking work at the start of sweeping could have led to a use-after-free.

Mozilla

Affected Software

13 affected componentsFixes available
debian/firefox
131.0.3-1
debian/firefox-esr
115.14.0esr-1~deb11u1128.3.1esr-1~deb11u1115.14.0esr-1~deb12u1128.3.1esr-1~deb12u1128.3.1esr-2
debian/thunderbird<=1:115.12.0-1~deb11u1, <=1:115.12.0-1~deb12u1
1:115.16.0esr-1~deb11u11:115.16.0esr-1~deb12u11:128.2.0esr-11:128.3.0esr-1
Mozilla Thunderbird<128.1
128.1
Mozilla Thunderbird<115.14
115.14
Mozilla Firefox<129.0
Mozilla Firefox ESR<115.14.0
Mozilla Firefox ESR=128.0
Mozilla Thunderbird<115.14.0
Mozilla Thunderbird=128.0.1
Mozilla Firefox<129
129
Mozilla Firefox ESR<128.1
128.1
Mozilla Firefox ESR<115.14
115.14

Event History

Aug 6, 2024
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·12:38 PM
Data Sourced
via MITRE·12:38 PM
DescriptionWeakness
Sep 16, 2024
Data Sourced
via Ubuntu·08:17 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2024-7527?

CVE-2024-7527 is classified as a critical vulnerability due to the potential for exploit causing a use-after-free condition.

2

How do I fix CVE-2024-7527?

To remediate CVE-2024-7527, update to Firefox version 129 or later, Firefox ESR version 115.14 or later, or Thunderbird version 128.1 or later.

3

Which versions are affected by CVE-2024-7527?

CVE-2024-7527 affects Firefox versions lower than 129, Firefox ESR versions lower than 115.14 and 128.1, and Thunderbird versions lower than 128.1.

4

What type of vulnerability is CVE-2024-7527?

CVE-2024-7527 is a use-after-free vulnerability that can be triggered during unexpected marking work at the start of the sweeping process.

5

Who is the vendor for CVE-2024-7527?

The vendor for CVE-2024-7527 is Mozilla, which develops Firefox, Firefox ESR, and Thunderbird software.

Contact

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