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CVE-2019-17016

Public on 2020-01-08
Modified on 2020-02-13
Description

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Severity
Important
See what this means
CVSS v3 Base Score
6.1
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core thunderbird 2020-02-10 23:43 ALAS2-2020-1393

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
NVD CVSSv3 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Red Hat: CVE-2019-17016 Mitre: CVE-2019-17016 FAQs regarding Amazon Linux ALAS/CVE Severity