CVE-2019-9813: High severity Mozilla Thunderbird vulnerability

Published Mar 22, 2019
·
Updated

Incorrect handling of proto mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write.

Affected Software

9 affected componentsFixes available
Mozilla Thunderbird<60.6.1
60.6.1
Mozilla Firefox<66.0.1
Mozilla Firefox ESR<60.6.1
Mozilla Thunderbird<60.6.1
Mozilla Firefox<66.0.1
66.0.1
Mozilla Firefox ESR<60.6.1
60.6.1
Mozilla Firefox<60.6.1
debian/firefox
152.0-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.11.0esr-1~deb11u1140.10.2esr-1~deb12u1140.12.0esr-1~deb12u1140.10.2esr-1~deb13u1140.12.0esr-1~deb13u1140.11.0esr-1140.12.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 60.6.1
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 66.0.1
  3. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 60.6.1
  4. Upgrade

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

    Fixed in 152.0-1
  5. Upgrade

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

    Fixed in 115.14.0esr-1~deb11u1Fixed in 140.11.0esr-1~deb11u1Fixed in 140.10.2esr-1~deb12u1Fixed in 140.12.0esr-1~deb12u1Fixed in 140.10.2esr-1~deb13u1Fixed in 140.12.0esr-1~deb13u1Fixed in 140.11.0esr-1Fixed in 140.12.0esr-1
  6. Upgrade

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

    Fixed in 115.14.0esr-1~deb11u1
  7. Upgrade

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

    Fixed in 140.11.0esr-1~deb11u1
  8. Upgrade

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

    Fixed in 140.10.2esr-1~deb12u1
  9. Upgrade

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

    Fixed in 140.12.0esr-1~deb12u1
  10. Upgrade

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

    Fixed in 140.10.2esr-1~deb13u1
  11. Upgrade

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

    Fixed in 140.12.0esr-1~deb13u1
  12. Upgrade

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

    Fixed in 140.11.0esr-1
  13. Upgrade

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

    Fixed in 140.12.0esr-1

Event History

Mar 22, 2019
CVE Published
via Mozilla·12:00 AM
Mar 24, 2019
Data Sourced
via Red Hat·11:03 PM
DescriptionSeverityAffected Software
Apr 26, 2019
CVE Published
via MITRE·04:09 PM
Data Sourced
via MITRE·04:09 PM
DescriptionWeakness
Data Sourced
via NVD·05:29 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:33 PM
Description
Feb 19, 2026
Data Sourced
via Ubuntu·06:00 PM
RemedyDescriptionSeverityAffected Software
Jun 18, 2026
Data Sourced
via Debian·04:04 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2019-9813?

CVE-2019-9813 is a vulnerability in Firefox, Firefox ESR, and Thunderbird that allows for type confusion and arbitrary memory read and write.

2

Which software versions are affected by CVE-2019-9813?

CVE-2019-9813 affects Firefox versions prior to 66.0.1, Firefox ESR versions prior to 60.6.1, and Thunderbird versions prior to 60.6.1.

3

How severe is CVE-2019-9813?

CVE-2019-9813 has a severity score of 8.8 (critical).

4

How can I fix CVE-2019-9813?

To fix CVE-2019-9813, update to Firefox version 66.0.1 or later, Firefox ESR version 60.6.1 or later, or Thunderbird version 60.6.1 or later.

5

Where can I find more information about CVE-2019-9813?

You can find more information about CVE-2019-9813 in the Mozilla security advisory (https://www.mozilla.org/en-US/security/advisories/mfsa2019-10/#CVE-2019-9813) and the Red Hat security advisories (https://access.redhat.com/errata/RHSA-2019:0671, https://access.redhat.com/errata/RHSA-2019:0672).

Company

Resources

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