CVE-2023-3417

Description

Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.

7.5

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.21%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Thunderbird

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1835582	permissions required
https://www.mozilla.org/security/advisories/mfsa2023-27/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-28/	vendor advisory
https://www.debian.org/security/2023/dsa-5463	third party advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00032.html	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2023-3417?: CVE-2023-3417 has been scored as a high severity vulnerability.
How to fix CVE-2023-3417?: To fix CVE-2023-3417, 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-2023-3417 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-3417 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-3417?: CVE-2023-3417 affects Mozilla Thunderbird, Mozilla Thunderbird.

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