CVE-2020-15652: Medium severity Mozilla Firefox vulnerability

Published Jul 28, 2020
·
Updated

By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a cross-origin redirect. This applied only to content that can be parsed as script.

Affected Software

47 affected componentsFixes available
Mozilla Firefox<79.0
Mozilla Firefox>=78.0<78.1
Mozilla Firefox ESR<68.11
Mozilla Thunderbird<68.11
Mozilla Thunderbird>=78.0<78.1
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
Mozilla Firefox ESR>=78.0<78.1
Mozilla Thunderbird<78.1
78.1
Mozilla Thunderbird<68.11
68.11
Mozilla Firefox<79
79
Mozilla Firefox ESR<68.11
68.11
Mozilla Firefox ESR<78.1
78.1
debian/firefox
148.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.8.0esr-1~deb11u1128.14.0esr-1~deb12u1140.8.0esr-1~deb12u1140.4.0esr-1~deb13u1140.8.0esr-1~deb13u1140.8.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u11:140.8.0esr-1~deb11u11:140.6.0esr-1~deb12u11:140.8.0esr-1~deb12u11:140.6.0esr-1~deb13u11:140.8.0esr-1~deb13u11:140.8.0esr-1
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox>=78.0<79.0-r0
79.0-r0
alpine/firefox-esr<68.11.0-r0
68.11.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/mozjs68<68.11.0-r0
68.11.0-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 78.1
  2. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 68.11
  3. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 79
  4. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 68.11
  5. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 78.1
  6. Upgrade

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

    Fixed in 148.0.2-1
  7. Upgrade

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

    Fixed in 115.14.0esr-1~deb11u1Fixed in 140.8.0esr-1~deb11u1Fixed in 128.14.0esr-1~deb12u1Fixed in 140.8.0esr-1~deb12u1Fixed in 140.4.0esr-1~deb13u1Fixed in 140.8.0esr-1~deb13u1Fixed in 140.8.0esr-1
  8. Upgrade

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

    Fixed in 1:115.12.0-1~deb11u1Fixed in 1:140.8.0esr-1~deb11u1Fixed in 1:140.6.0esr-1~deb12u1Fixed in 1:140.8.0esr-1~deb12u1Fixed in 1:140.6.0esr-1~deb13u1Fixed in 1:140.8.0esr-1~deb13u1Fixed in 1:140.8.0esr-1
  9. Upgrade

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

    Fixed in 79.0-r0
  10. Upgrade

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

    Fixed in 68.11.0-r0
  11. Upgrade

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

    Fixed in 78.1.0-r0
  12. Upgrade

    Upgrade alpine/librewolf to a version that resolves this vulnerability.

    Fixed in 79.0-r0
  13. Upgrade

    Upgrade alpine/mozjs68 to a version that resolves this vulnerability.

    Fixed in 68.11.0-r0

Event History

Jul 28, 2020
CVE Published
12:00 AM
Aug 10, 2020
CVE Published
via MITRE·05:43 PM
Data Sourced
via MITRE·05:43 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 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-2020-15652?

CVE-2020-15652 is a vulnerability in Mozilla Firefox ESR and Thunderbird that allows the leakage of a cross-origin redirect result by observing the stack trace for JavaScript errors in web workers.

2

Which software versions are affected by CVE-2020-15652?

Mozilla Firefox ESR versions up to 68.11, Firefox ESR versions up to 78.1, Thunderbird versions up to 78.1, and Firefox versions up to 79 are affected by CVE-2020-15652.

3

What is the severity of CVE-2020-15652?

CVE-2020-15652 has a severity level of high.

4

How can I fix CVE-2020-15652?

To fix CVE-2020-15652, you should update Mozilla Firefox ESR to version 68.11 or higher, Firefox ESR to version 78.1 or higher, Thunderbird to version 78.1 or higher, or Firefox to version 79 or higher.

5

Where can I find more information about CVE-2020-15652?

You can find more information about CVE-2020-15652 on the Mozilla Bugzilla website and the Mozilla Security Advisories page.

Company

Resources

Contact

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