CVE-2023-37202: Use After Free

Published Jul 4, 2023
·
Updated

Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

Other sources

Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free.

External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2023-23/#CVE-2023-37202

— Red Hat

Affected Software

23 affected componentsFixes available
ubuntu/firefox<115.0-1
115.0-1
ubuntu/firefox<115.0+
115.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/mozjs102<102.13.0-0ubuntu0.22.04.1
102.13.0-0ubuntu0.22.04.1
ubuntu/mozjs102<102.13.0-0ubuntu0.22.10.1
102.13.0-0ubuntu0.22.10.1
ubuntu/mozjs102<102.13.0-0ubuntu0.23.04.1
102.13.0-0ubuntu0.23.04.1
redhat/firefox<102.13
102.13
redhat/thunderbird<102.13
102.13
debian/firefox
123.0-1
debian/firefox-esr<=91.12.0esr-1~deb10u1
115.8.0esr-1~deb10u1115.7.0esr-1~deb11u1115.8.0esr-1~deb11u1115.7.0esr-1~deb12u1115.8.0esr-1~deb12u1115.8.0esr-1
debian/thunderbird<=1:91.12.0-1~deb10u1
1:115.8.0-1~deb10u11:115.7.0-1~deb11u11:115.8.0-1~deb11u11:115.7.0-1~deb12u11:115.8.0-1~deb12u11:115.7.0-11:115.8.1-1
Mozilla Thunderbird<102.13
102.13
Mozilla Firefox<115
115
Mozilla Firefox ESR<102.13
102.13
Mozilla Firefox<115.0
Mozilla Firefox ESR<102.13
Mozilla Thunderbird<102.13
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Debian Debian Linux=12.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 115.0-1
  2. Upgrade

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

    Fixed in 115.0+
  3. Upgrade

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

    Fixed in 1:102.13.0+
  4. Upgrade

    Upgrade ubuntu/mozjs102 to a version that resolves this vulnerability.

    Fixed in 102.13.0-0ubuntu0.22.04.1
  5. Upgrade

    Upgrade ubuntu/mozjs102 to a version that resolves this vulnerability.

    Fixed in 102.13.0-0ubuntu0.22.10.1
  6. Upgrade

    Upgrade ubuntu/mozjs102 to a version that resolves this vulnerability.

    Fixed in 102.13.0-0ubuntu0.23.04.1
  7. Upgrade

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

    Fixed in 102.13
  8. Upgrade

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

    Fixed in 102.13
  9. Upgrade

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

    Fixed in 123.0-1
  10. Upgrade

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

    Fixed in 115.8.0esr-1~deb10u1Fixed in 115.7.0esr-1~deb11u1Fixed in 115.8.0esr-1~deb11u1Fixed in 115.7.0esr-1~deb12u1Fixed in 115.8.0esr-1~deb12u1Fixed in 115.8.0esr-1
  11. Upgrade

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

    Fixed in 1:115.8.0-1~deb10u1Fixed in 1:115.7.0-1~deb11u1Fixed in 1:115.8.0-1~deb11u1Fixed in 1:115.7.0-1~deb12u1Fixed in 1:115.8.0-1~deb12u1Fixed in 1:115.7.0-1Fixed in 1:115.8.1-1
  12. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 102.13
  13. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 115
  14. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 102.13

Event History

Jul 4, 2023
CVE Published
12:00 AM
Jul 5, 2023
CVE Published
via MITRE·08:52 AM
Data Sourced
via MITRE·08:52 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:21 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2023-37202.

2

Which software versions are affected by this vulnerability?

This vulnerability affects Firefox versions less than 115, Firefox ESR versions less than 102.13, and Thunderbird versions less than 102.13.

3

What is the severity of CVE-2023-37202?

The severity of CVE-2023-37202 is high, with a severity value of 7.

4

How does this vulnerability occur?

Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free.

5

How can I find more information about CVE-2023-37202?

You can find more information about CVE-2023-37202 in the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1834711), [Mozilla Security Advisory](https://www.mozilla.org/security/advisories/mfsa2023-22/), [Mozilla Security Advisory](https://www.mozilla.org/security/advisories/mfsa2023-23/).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203