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AUSCERT External Security Bulletin Redistribution
ESB-2023.3802
MFSA 2023-24 Security Vulnerabilities fixed in Thunderbird 102.13
5 July 2023
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AusCERT Security Bulletin Summary
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Product: Thunderbird
Publisher: Mozilla
Operating System: Windows
Linux variants
macOS
Resolution: Patch/Upgrade
CVE Names: CVE-2023-37211 CVE-2023-37208 CVE-2023-37207
CVE-2023-37202 CVE-2023-37201
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-24/
Comment: CVSS (Max): None available when published
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Mozilla Foundation Security Advisory 2023-24
Security Vulnerabilities fixed in Thunderbird 102.13
Announced: July 4, 2023
Impact: high
Products: Thunderbird
Fixed in: Thunderbird 102.13
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-2023-37201: Use-after-free in WebRTC certificate generation
Reporter: Irvan Kurniawan
Impact: high
Description
An attacker could have triggered a use-after-free condition when creating a
WebRTC connection over HTTPS.
References
o Bug 1826002
# CVE-2023-37202: Potential use-after-free from compartment mismatch in
SpiderMonkey
Reporter: zx
Impact: high
Description
Cross-compartment wrappers wrapping a scripted proxy could have caused objects
from other compartments to be stored in the main compartment resulting in a
use-after-free.
References
o Bug 1834711
# CVE-2023-37207: Fullscreen notification obscured
Reporter: Shaheen Fazim
Impact: moderate
Description
A website could have obscured the fullscreen notification by using a URL with a
scheme handled by an external program, such as a mailto URL. This could have
led to user confusion and possible spoofing attacks.
References
o Bug 1816287
# CVE-2023-37208: Lack of warning when opening Diagcab files
Reporter: Puf
Impact: moderate
Description
When opening Diagcab files, Firefox did not warn the user that these files may
contain malicious code.
References
o Bug 1837675
# CVE-2023-37211: Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13,
and Thunderbird 102.13
Reporter: Andrew McCreight, Matthew Gaudet, Tom Ritter, and the Mozilla Fuzzing Team,
Impact: high
Description
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird
102.12. 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 Firefox 115, Firefox ESR 102.13, and
Thunderbird 102.13
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