CVE-2019-17016

medium

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.

References

Advisories
More

https://www.debian.org/security/2020/dsa-4603

https://www.debian.org/security/2020/dsa-4600

https://usn.ubuntu.com/4335-1/

https://usn.ubuntu.com/4241-1/

https://usn.ubuntu.com/4234-1/

https://security.gentoo.org/glsa/202003-02

https://seclists.org/bugtraq/2020/Jan/18

https://seclists.org/bugtraq/2020/Jan/12

https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html

https://access.redhat.com/errata/RHSA-2020:0295

https://access.redhat.com/errata/RHSA-2020:0292

https://access.redhat.com/errata/RHSA-2020:0127

https://access.redhat.com/errata/RHSA-2020:0123

https://access.redhat.com/errata/RHSA-2020:0120

https://access.redhat.com/errata/RHSA-2020:0111

https://access.redhat.com/errata/RHSA-2020:0086

https://access.redhat.com/errata/RHSA-2020:0085

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html

https://www.mozilla.org/security/advisories/mfsa2020-02/

https://www.mozilla.org/security/advisories/mfsa2020-01/

https://seclists.org/bugtraq/2020/Jan/26

https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1599181

http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html

Details

Source: Mitre, NVD

Published: 2020-01-08

Updated: 2020-01-13

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.02173