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AUSCERT External Security Bulletin Redistribution
ESB-2022.6480
MFSA 2022-51 Security Vulnerabilities fixed in Firefox 108
14 December 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Publisher: Mozilla
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2022-46879 CVE-2022-46878 CVE-2022-46877
CVE-2022-46875 CVE-2022-46874 CVE-2022-46873
CVE-2022-46872 CVE-2022-46871
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2022-51/
Comment: CVSS (Max): None available when published
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Mozilla Foundation Security Advisory 2022-51
Security Vulnerabilities fixed in Firefox 108
Announced: December 13, 2022
Impact: high
Products: Firefox
Fixed in: Firefox 108
# CVE-2022-46871: libusrsctp library out of date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An out of date library (libusrsctp) contained vulnerabilities that could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-2022-46872: Arbitrary file read from a compromised content process
Reporter: Nika Layzell
Impact: high
Description
An attacker who compromised a content process could have partially escaped the
sandbox to read arbitrary files via clipboard-related IPC messages.
This bug only affects Firefox for Linux. Other operating systems are
unaffected.
References
o Bug 1799156
# CVE-2022-46873: Firefox did not implement the CSP directive unsafe-hashes
Reporter: Pete Freitag
Impact: moderate
Description
Because Firefox did not implement the unsafe-hashes CSP directive, an attacker
who was able to inject markup into a page otherwise protected by a Content
Security Policy may have been able to inject executable script. This would be
severely constrained by the specified Content Security Policy of the document.
References
o Bug 1644790
# CVE-2022-46874: Drag and Dropped Filenames could have been truncated to
malicious extensions
Reporter: Matthias Zoellner
Impact: moderate
Description
A file with a long filename could have had its filename truncated to remove the
valid extension, leaving a malicious extension in its place. This could have
potentially led to user confusion and the execution of malicious code.
References
o Bug 1746139
# CVE-2022-46875: Download Protections were bypassed by .atloc and .ftploc files
on Mac OS
Reporter: Dohyun Lee
Impact: moderate
Description
The executable file warning was not presented when downloading .atloc and
.ftploc files, which can run commands on a user's computer.
Note: This issue only affected Mac OS operating systems. Other operating
systems are unaffected.
References
o Bug 1786188
# 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-2022-46878: Memory safety bugs fixed in Firefox 108 and Firefox ESR 102.6
Reporter: Mozilla developers
Impact: high
Description
Mozilla developers Randell Jesup, Valentin Gosu, Olli Pettay, and the Mozilla
Fuzzing Team reported memory safety bugs present in Firefox 107 and Firefox ESR
102.5. 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 108 and Firefox ESR 102.6
# CVE-2022-46879: Memory safety bugs fixed in Firefox 108
Reporter: Mozilla developers and community
Impact: high
Description
Mozilla developers and community members Lukas Bernhard, Gabriele Svelto,
Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present
in Firefox 107. 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 108
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