CVE-2022-46872: High severity Mozilla Thunderbird vulnerability

Published Dec 13, 2022
·
Updated

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.

This bug only affects Firefox for Linux. Other operating systems are unaffected.

External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2022-52/#CVE-2022-46872

Other sources

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.<br>This bug only affects Thunderbird for Linux. Other operating systems are unaffected.. This vulnerability affects Firefox < 108, Firefox ESR < 102.6, and Thunderbird < 102.6.

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.This bug only affects Firefox for Linux. Other operating systems are unaffected.

— Mozilla

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.This bug only affects Thunderbird for Linux. Other operating systems are unaffected.

Affected Software

26 affected componentsFixes available
Mozilla Thunderbird<102.6
102.6
Mozilla Firefox<108.0
Mozilla Firefox ESR<102.6
Mozilla Thunderbird<102.6
Linux Linux kernel
All of the following
Mozilla Thunderbird<102.6
Linux Linux kernel
Mozilla Firefox<108
108
Mozilla Firefox ESR<102.6
102.6
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
alpine/firefox-esr<102.6.0-r0
102.6.0-r0
debian/firefox-esr<102.6.0esr-1
102.6.0esr-1
debian/firefox-esr<102.6.0esr-1
102.6.0esr-1
debian/firefox-esr<102.6.0esr-1
102.6.0esr-1
debian/thunderbird<1:102.6.0-1
1:102.6.0-1
debian/thunderbird<1:102.6.0-1
1:102.6.0-1
debian/thunderbird<1:102.6.0-1
1:102.6.0-1
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
redhat/firefox<102.6
102.6
redhat/thunderbird<102.6
102.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 102.6
  2. Upgrade

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

    Fixed in 108
  3. Upgrade

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

    Fixed in 102.6
  4. Upgrade

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

    Fixed in 102.6.0-r0
  5. Upgrade

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

    Fixed in 102.6.0esr-1
  6. Upgrade

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

    Fixed in 1:102.6.0-1
  7. Upgrade

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

    Fixed in 159.0.1-1
  8. 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
  9. 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
  10. Upgrade

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

    Fixed in 102.6
  11. Upgrade

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

    Fixed in 102.6

Event History

Dec 13, 2022
CVE Published
12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Dec 14, 2022
Data Sourced
via Red Hat·03:15 PM
DescriptionSeverityAffected Software
Dec 22, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·08:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·08:15 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 CVE-2022-46872?

CVE-2022-46872 is a vulnerability that allows an attacker who compromised a content process to partially escape the sandbox and read arbitrary files via clipboard-related IPC messages.

2

Which operating systems are affected by CVE-2022-46872?

This vulnerability only affects Thunderbird for Linux. Other operating systems are unaffected.

3

Which versions of Thunderbird and Firefox ESR are affected by CVE-2022-46872?

Thunderbird versions up to and excluding 102.6 and Firefox ESR versions up to and excluding 102.6 are affected.

4

Which versions of Firefox are affected by CVE-2022-46872?

Firefox versions up to and excluding 108.0 are affected.

5

What is the severity of CVE-2022-46872?

CVE-2022-46872 has a severity rating of 8.6 (High).

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