UBUNTU-CVE-2019-11744

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UBUNTU-CVE-2019-11744

Summary:

Details: Some HTML elements, such as &lt;title&gt; and &lt;textarea&gt;, can contain literal angle brackets without treating them as markup. It is possible to pass a literal closing tag to .innerHTML on these elements, and subsequent content after that will be parsed as if it were outside the tag. This can lead to XSS if a site does not filter user input as strictly for these elements as it does for other elements. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

References: https://ubuntu.com/security/CVE-2019-11744, https://www.mozilla.org/en-US/security/advisories/mfsa2019-25/#CVE-2019-11744, https://www.mozilla.org/en-US/security/advisories/mfsa2019-29/#CVE-2019-11744, https://ubuntu.com/security/notices/USN-4122-1, https://ubuntu.com/security/notices/USN-4150-1, https://www.cve.org/CVERecord?id=CVE-2019-11744