medium
6.1
CWE
346 829
Advisory Published
Updated

CVE-2019-11762

First published: Tue Oct 22 2019(Updated: )

A flaw was found in Mozilla's firefox and thunderbird where if two same-origin documents set document.domain differently to become cross-origin, it was possible for them to call arbitrary DOM methods/getters/setters on the now-cross-origin window. This could cause an interaction between two different sites on two different windows running under the same application.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
redhat/firefox<0:68.2.0-4.el6_10
0:68.2.0-4.el6_10
redhat/thunderbird<0:68.2.0-2.el6_10
0:68.2.0-2.el6_10
redhat/firefox<0:68.2.0-1.el7_7
0:68.2.0-1.el7_7
redhat/thunderbird<0:68.2.0-1.el7_7
0:68.2.0-1.el7_7
redhat/firefox<0:68.2.0-2.el8_0
0:68.2.0-2.el8_0
redhat/thunderbird<0:68.2.0-1.el8_0
0:68.2.0-1.el8_0
redhat/firefox<68.2
68.2
redhat/thunderbird<68.2
68.2
Mozilla Thunderbird<68.2
68.2
Mozilla Firefox ESR<68.2
68.2
Mozilla Firefox<70
70
Mozilla Firefox<70.0
Mozilla Firefox ESR<68.2
Mozilla Thunderbird<68.2
Canonical Ubuntu Linux=16.04
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0+
70.0+
ubuntu/firefox<70.0
70.0
ubuntu/firefox<70.0+
70.0+
ubuntu/thunderbird<1:68.2.1+
1:68.2.1+
ubuntu/thunderbird<1:68.2.1+
1:68.2.1+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<1:68.2.0+
1:68.2.0+
ubuntu/thunderbird<68.2
68.2
ubuntu/thunderbird<1:68.7.0+
1:68.7.0+
debian/firefox
125.0.3-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.10.0esr-1~deb10u1
115.7.0esr-1~deb11u1
115.10.0esr-1~deb11u1
115.7.0esr-1~deb12u1
115.10.0esr-1~deb12u1
115.10.0esr-1
debian/thunderbird
1:91.12.0-1~deb10u1
1:115.10.1-1~deb10u1
1:115.7.0-1~deb11u1
1:115.10.1-1~deb11u1
1:115.7.0-1~deb12u1
1:115.10.1-1~deb12u1
1:115.10.1-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2019-11762?

    CVE-2019-11762 is a vulnerability in Mozilla's Firefox and Thunderbird that allows two same-origin documents to call arbitrary DOM methods/getters/setters on a cross-origin window.

  • What is the severity of CVE-2019-11762?

    CVE-2019-11762 has a severity rating of medium with a CVSS score of 6.1.

  • Which software is affected by CVE-2019-11762?

    Firefox versions 68.2.0-4.el6_10, 68.2.0-1.el7_7, 68.2.0-2.el8_0, and Thunderbird versions 68.2.0-2.el6_10, 68.2.0-1.el7_7, 68.2.0-1.el8_0 are affected by CVE-2019-11762.

  • How can CVE-2019-11762 be remediated?

    To remediate CVE-2019-11762, users should update their Firefox or Thunderbird software to versions 68.2.0 or later.

  • Where can I find more information about CVE-2019-11762?

    Additional information about CVE-2019-11762 can be found in the following references: Mozilla Bugzilla - https://bugzilla.mozilla.org/show_bug.cgi?id=1582857, Mozilla MFSA2019-33 - https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/, Mozilla MFSA2019-35 - https://www.mozilla.org/en-US/security/advisories/mfsa2019-35/

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