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AUSCERT External Security Bulletin Redistribution
ESB-2023.4144
MFSA 2023-27 Security Vulnerabilities fixed in Thunderbird 115.0.1
24 July 2023
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AusCERT Security Bulletin Summary
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Product: Thunderbird
Publisher: Mozilla Foundation
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2023-3600 CVE-2023-3417
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-27/
Comment: CVSS (Max): 8.8* CVE-2023-3600 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
* Not all CVSS available when published
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Mozilla Foundation Security Advisory 2023-27
Security Vulnerabilities fixed in Thunderbird 115.0.1
Announced: July 20, 2023
Impact: high
Products: Thunderbird
Fixed in: Thunderbird 115.0.1
# CVE-2023-3600: Use-after-free in workers
Reporter: Andrew McCreight
Impact: high
Description
During the worker lifecycle, a use-after-free condition could have occured,
which could have led to a potentially exploitable crash.
References
o Bug 1839703
# CVE-2023-3417: File Extension Spoofing using the Text Direction Override
Character
Reporter: (Junsung Lee)
Impact: moderate
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.
References
o Bug 1835582
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