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Status published
Medium
CVE-2019-17016
When pasting a <style> tag from the clipboard into a...
Vulnerability Description
When pasting a <style> 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1599181
- https://www.mozilla.org/security/advisories/mfsa2020-01/
- https://www.mozilla.org/security/advisories/mfsa2020-02/
- https://seclists.org/bugtraq/2020/Jan/12
- https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html
- https://www.debian.org/security/2020/dsa-4600
- https://usn.ubuntu.com/4234-1/
- https://seclists.org/bugtraq/2020/Jan/18
- https://access.redhat.com/errata/RHSA-2020:0085
- https://access.redhat.com/errata/RHSA-2020:0086
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
- https://access.redhat.com/errata/RHSA-2020:0111
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
- https://access.redhat.com/errata/RHSA-2020:0120
- https://access.redhat.com/errata/RHSA-2020:0123
- https://access.redhat.com/errata/RHSA-2020:0127
- https://usn.ubuntu.com/4241-1/
- https://www.debian.org/security/2020/dsa-4603
- https://seclists.org/bugtraq/2020/Jan/26
- https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html
- https://access.redhat.com/errata/RHSA-2020:0292
- https://access.redhat.com/errata/RHSA-2020:0295
- https://security.gentoo.org/glsa/202003-02
- https://usn.ubuntu.com/4335-1/
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Affected Vendor
Mozilla
View all reports →Affected Software
Firefox ESR, Firefox
Vulnerable Versions:
before 68.4, before 72
Timeline
Official Publish:
January 8th, 2020
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.