CVE-2018-5170

Description

It is possible to spoof the filename of an attachment and display an arbitrary attachment name. This could lead to a user opening a remote attachment which is a different file type than expected. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.17% Top 25%
Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2018:1726 third party advisory vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1411732 issue tracking permissions required
https://security.gentoo.org/glsa/201811-13 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-13/ vendor advisory
https://usn.ubuntu.com/3660-1/ third party advisory vendor advisory
http://www.securitytracker.com/id/1040946 vdb entry third party advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00013.html third party advisory mailing list
https://access.redhat.com/errata/RHSA-2018:1725 third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4209 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5170?
CVE-2018-5170 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5170?
To fix CVE-2018-5170, 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-2018-5170 being actively exploited in the wild?
It is possible that CVE-2018-5170 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-2018-5170?
CVE-2018-5170 affects Mozilla Thunderbird ESR, Mozilla Thunderbird.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.