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CVE-2023-3417

File Extension Spoofing using the Text Direction Override Character

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 115.0.1, 102.13.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Mozilla Thunderbird

    fixed in 115.0.1

  • Mozilla Thunderbird

    fixed in 102.13.1

References 5

bugzilla.mozilla.org

lists.debian.org

debian.org

mozilla.org