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AUSCERT External Security Bulletin Redistribution
ESB-2023.0268
MFSA 2023-01 Security Vulnerabilities fixed in Firefox 109
18 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Publisher: Mozilla
Operating System: Linux variants
Android
Windows
Resolution: Patch/Upgrade
CVE Names: CVE-2023-23606 CVE-2023-23605 CVE-2023-23604
CVE-2023-23603 CVE-2023-23602 CVE-2023-23601
CVE-2023-23600 CVE-2023-23599 CVE-2023-23598
CVE-2023-23597
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-01/
Comment: CVSS (Max): None available when published
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Mozilla Foundation Security Advisory 2023-01
Security Vulnerabilities fixed in Firefox 109
Announced: January 17, 2023
Impact: high
Products: Firefox
Fixed in: Firefox 109
# CVE-2023-23597: Logic bug in process allocation allowed to read arbitrary
files
Reporter: Niklas Baumstark
Impact: high
Description
A compromised web child process could disable web security opening
restrictions, leading to a new child process being spawned within the file://
context. Given a reliable exploit primitive, this new process could be
exploited again leading to arbitrary file read.
References
o Bug 1538028
# CVE-2023-23598: Arbitrary file read from GTK drag and drop on Linux
Reporter: Tom Schuster
Impact: high
Description
Due to the Firefox 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-2023-23600: Notification permissions persisted between Normal and Private
Browsing on Android
Reporter: Kazuki Nomoto of Waseda University
Impact: moderate
Description
Per origin notification permissions were being stored in a way that didn't take
into account what browsing context the permission was granted in. This lead to
the possibility of notifications to be displayed during different browsing
sessions.
This bug only affects Firefox for Android. Other operating systems are
unaffected.
References
o Bug 1787034
# 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-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-2023-23604: Creation of duplicate <code>SystemPrincipal</code> from less
secure contexts
Reporter: Nika Layzell
Impact: low
Description
A duplicate SystemPrincipal object could be created when parsing a non-system
html document via DOMParser::ParseFromSafeString. This could have lead to
bypassing web security checks.
References
o Bug 1802346
# CVE-2023-23605: Memory safety bugs fixed in Firefox 109 and Firefox ESR 102.7
Reporter: Mozilla developers
Impact: high
Description
Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs
present in Firefox 108 and Firefox ESR 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 Firefox 109 and Firefox ESR 102.7
# CVE-2023-23606: Memory safety bugs fixed in Firefox 109
Reporter: Mozilla developers
Impact: high
Description
Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs
present in Firefox 108. 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 109
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