CVE-2018-5173

Description

The filename appearing in the "Downloads" panel improperly renders some Unicode characters, allowing for the file name to be spoofed. This can be used to obscure the file extension of potentially executable files from user view in the panel. Note: the dialog to open the file will show the full, correct filename and whether it is executable or not. This vulnerability affects Firefox < 60.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.06% Top 25%
Vendor Advisory ubuntu.com Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2018-11/ vendor advisory
http://www.securitytracker.com/id/1040896 third party advisory vdb entry
https://usn.ubuntu.com/3645-1/ third party advisory vendor advisory
http://www.securityfocus.com/bid/104139 third party advisory vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1438025 vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2018-5173?
CVE-2018-5173 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5173?
To fix CVE-2018-5173, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5173 being actively exploited in the wild?
It is possible that CVE-2018-5173 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5173?
CVE-2018-5173 affects Mozilla Firefox.
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