PT-2019-4072 · Mozilla+5 · Firefox Esr+7
Nils
·
Published
2019-05-21
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Updated
2024-12-12
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CVE-2019-9820
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 67
Firefox ESR versions prior to 60.7
Thunderbird versions prior to 60.7
Description
A use-after-free issue can occur in the chrome event handler when it is freed while still in use, resulting in a potentially exploitable crash. The vulnerability is related to a use-after-free error, which means that the software attempts to access memory that has already been freed. This can lead to a crash, potentially allowing a remote attacker to cause a denial of service during API handling.
Recommendations
For Firefox versions prior to 67, update to version 67 or later to resolve the issue.
For Firefox ESR versions prior to 60.7, update to version 60.7 or later to resolve the issue.
For Thunderbird versions prior to 60.7, update to version 60.7 or later to resolve the issue.
Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Firefox
Firefox Esr
Red Hat
Suse
Thunderbird
Ubuntu