Medium severity · published Jan 8, 2020
CVE-2019-17016
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule
6.1
CVSS
2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 72.0 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.7 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
FE
Firefox Esr · Mozilla
before 68.4 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 19.04; 19.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-17016
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-17016
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html
packetstormsecurity.com
http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0085
Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0086
access.redhat.com
https://access.redhat.com/errata/RHSA-2020:0111
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