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AUSCERT External Security Bulletin Redistribution
ESB-2023.0388
MFSA 2023-03 Security Vulnerabilities fixed in Thunderbird 102.7
24 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Thunderbird
Publisher: Mozilla
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2023-23605 CVE-2023-23603 CVE-2023-23602
CVE-2023-23601 CVE-2023-23599 CVE-2023-23598
CVE-2022-46877 CVE-2022-46871
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-03/
Comment: CVSS (Max): 8.8 CVE-2022-46871 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: [NVD], Red Hat
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
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Mozilla Foundation Security Advisory 2023-03
Security Vulnerabilities fixed in Thunderbird 102.7
Announced: January 18, 2023
Impact: high
Products: Thunderbird
Fixed in: Thunderbird 102.7
In general, these flaws cannot be exploited through email in the Thunderbird
product because scripting is disabled when reading mail, but are potentially
risks in browser or browser-like contexts.
# CVE-2022-46871: libusrsctp library out of date
Reporter: Mozilla Developers
Impact: high
Description
An out of date library (libusrsctp) contained vulnerabilities that could
potentially be exploited.
References
o Bug 1795697
# CVE-2023-23598: Arbitrary file read from GTK drag and drop on Linux
Reporter: Tom Schuster
Impact: high
Description
Due to the Thunderbird GTK wrapper code's use of text/plain for drag data and
GTK treating all text/plain MIMEs containing file URLs as being dragged a
website could arbitrarily read a file via a call to DataTransfer.setData.
References
o Bug 1800425
# CVE-2023-23599: Malicious command could be hidden in devtools output on
Windows
Reporter: Vadim
Impact: moderate
Description
When copying a network request from the developer tools panel as a curl command
the output was not being properly sanitized and could allow arbitrary commands
to be hidden within.
References
o Bug 1777800
# CVE-2023-23601: URL being dragged from cross-origin iframe into same tab
triggers navigation
Reporter: Luan Herrera
Impact: moderate
Description
Navigations were being allowed when dragging a URL from a cross-origin iframe
into the same tab which could lead to website spoofing attacks
References
o Bug 1794268
# CVE-2023-23602: Content Security Policy wasn't being correctly applied to
WebSockets in WebWorkers
Reporter: Dave Vandyke
Impact: moderate
Description
A mishandled security check when creating a WebSocket in a WebWorker caused the
Content Security Policy connect-src header to be ignored. This could lead to
connections to restricted origins from inside WebWorkers.
References
o Bug 1800890
# CVE-2022-46877: Fullscreen notification bypass
Reporter: Hafiizh
Impact: low
Description
By confusing the browser, the fullscreen notification could have been delayed
or suppressed, resulting in potential user confusion or spoofing attacks.
References
o Bug 1795139
# CVE-2023-23603: Calls to <code>console.log</code> allowed bypasing Content
Security Policy via format directive
Reporter: Dan Veditz
Impact: low
Description
Regular expressions used to filter out forbidden properties and values from
style directives in calls to console.log weren't accounting for external URLs.
Data could then be potentially exfiltrated from the browser.
References
o Bug 1800832
# CVE-2023-23605: Memory safety bugs fixed in Thunderbird 102.7
Reporter: Mozilla developers and community
Impact: high
Description
Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs
present in Thunderbird 102.6. Some of these bugs showed evidence of memory
corruption and we presume that with enough effort some of these could have been
exploited to run arbitrary code.
References
o Memory safety bugs fixed in Thunderbird 102.7
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