CVE-2024-9394: XSS

Published Oct 1, 2024
·
Updated

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the resource://devtools origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

Other sources

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the resource://devtools origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions.

— Mozilla

Affected Software

24 affected componentsFixes available
Mozilla Thunderbird<131
131
Mozilla Firefox<131
131
Mozilla Firefox ESR<128.3
128.3
Mozilla Firefox ESR<115.16
115.16
Mozilla Firefox<131.0
Mozilla Firefox ESR<115.16.0
Mozilla Firefox ESR>=116.0<128.3.0
Mozilla Thunderbird<128.3
Mozilla Thunderbird=129.0-beta
Mozilla Thunderbird=129.0-beta2
Mozilla Thunderbird=129.0-beta3
Mozilla Thunderbird=129.0-beta4
Mozilla Thunderbird=129.0-beta5
Mozilla Thunderbird=129.0-beta6
debian/firefox-esr<128.3.0esr-1~deb12u1
128.3.0esr-1~deb12u1
debian/firefox-esr<128.3.0esr-1
128.3.0esr-1
debian/firefox-esr<128.3.0esr-1
128.3.0esr-1
debian/thunderbird<1:115.16.0esr-1~deb12u1
1:115.16.0esr-1~deb12u1
debian/thunderbird<1:128.3.0esr-1
1:128.3.0esr-1
debian/thunderbird<1:128.3.0esr-1
1:128.3.0esr-1
Mozilla Thunderbird<128.3
128.3
debian/firefox
159.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.6.0esr-1~deb12u2140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.6.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.6.0esr-1~deb12u21:140.12.0esr-1~deb13u11:153.6.0esr-1~deb13u11:153.5.0esr-11:153.6.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 131
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 131
  3. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 128.3
  4. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.16
  5. Upgrade

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

    Fixed in 128.3.0esr-1~deb12u1
  6. Upgrade

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

    Fixed in 128.3.0esr-1
  7. Upgrade

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

    Fixed in 1:115.16.0esr-1~deb12u1
  8. Upgrade

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

    Fixed in 1:128.3.0esr-1
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 128.3
  10. Upgrade

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

    Fixed in 159.0.1-1
  11. Upgrade

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

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1
  12. Upgrade

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

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1

Event History

Oct 1, 2024
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·03:13 PM
Data Sourced
via MITRE·03:13 PM
DescriptionWeakness
Data Sourced
via Red Hat·04:03 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·04:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-9394?

CVE-2024-9394 has been classified as a moderate severity vulnerability.

2

How do I fix CVE-2024-9394?

To remediate CVE-2024-9394, update your Mozilla Firefox or Thunderbird to the latest patched version.

3

What products are affected by CVE-2024-9394?

CVE-2024-9394 affects multiple versions of Mozilla Firefox ESR, Firefox, and Thunderbird.

4

What type of vulnerability is CVE-2024-9394?

CVE-2024-9394 is a cross-origin resource sharing vulnerability that enables arbitrary JavaScript execution.

5

Is there a workaround for CVE-2024-9394?

Currently, the best approach to mitigate CVE-2024-9394 is to upgrade to the latest version of the affected software.

Company

Resources

Contact

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