Home/CVE/Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly
CVE

CVE-2023-3417

Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly

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.

HIGH · CVSS 7.5 EPSS 0.00205
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

3
mozilla thunderbird< 102.13.1
mozilla thunderbird>= 115.0 and < 115.0.1
debian linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Jul 2023 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:13072-1
usnUSN-6333-1
rhsaRHSA-2023:4499Important
rhsaRHSA-2023:4500Important
rhsaRHSA-2023:4495Important
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1835582Permissions Required
https://lists.debian.org/debian-lts-announce/2023/07/msg00032.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2023/dsa-5463Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-27/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-28/Vendor Advisory
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