critical
9.8
CWE
843
Advisory Published
Updated

CVE-2019-9819

First published: Tue May 21 2019(Updated: )

A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Thunderbird<60.7
60.7
Mozilla Firefox ESR<60.7
60.7
Mozilla Firefox<67
67
Mozilla Firefox<67.0
Mozilla Firefox ESR<60.7
Mozilla Thunderbird<60.7
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0
67.0
ubuntu/firefox<67.0+
67.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<60.7
60.7
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
debian/firefox
125.0.3-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.10.0esr-1~deb10u1
115.7.0esr-1~deb11u1
115.10.0esr-1~deb11u1
115.7.0esr-1~deb12u1
115.10.0esr-1~deb12u1
115.10.0esr-1
debian/thunderbird
1:91.12.0-1~deb10u1
1:115.10.1-1~deb10u1
1:115.7.0-1~deb11u1
1:115.10.1-1~deb11u1
1:115.7.0-1~deb12u1
1:115.10.1-1~deb12u1
1:115.10.1-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2019-9819?

    CVE-2019-9819 is a vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash.

  • Which software products are affected by CVE-2019-9819?

    CVE-2019-9819 affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

  • What is the severity of CVE-2019-9819?

    CVE-2019-9819 has a severity rating of critical (9.8).

  • How do I fix CVE-2019-9819?

    To fix CVE-2019-9819, update Thunderbird to version 60.7 or later, update Firefox to version 67 or later, or update Firefox ESR to version 60.7 or later.

  • Where can I find more information about CVE-2019-9819?

    You can find more information about CVE-2019-9819 at the following references: [link1] [link2] [link3].

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