CVE-2018-5117

moderate-risk
Published 2018-06-11

If right-to-left text is used in the addressbar with left-to-right alignment, it is possible in some circumstances to scroll this text to spoof the displayed URL. This issue could result in the wrong URL being displayed as a location, which can mislead users to believe they are on a different site than the one loaded. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Debian Redhat Mozilla Canonical

References (26)

Third Party Advisory http://www.securityfocus.com/bid/102783
Third Party Advisory http://www.securitytracker.com/id/1040270
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0122
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0262
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1395508
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/01/msg00030.html
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/01/msg00036.html
Third Party Advisory https://usn.ubuntu.com/3544-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4096
Third Party Advisory https://www.debian.org/security/2018/dsa-4102
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-02/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-03/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-04/
Third Party Advisory http://www.securityfocus.com/bid/102783
Third Party Advisory http://www.securitytracker.com/id/1040270
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0122
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0262
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1395508
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/01/msg00030.html
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/01/msg00036.html
and 6 more references
46
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 5/34 · Minimal
Exposure 20/34 · Moderate