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#CVE-2022-46871: libusrsctp library out of date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An out of date library (libusrsctp) contained vulnerabilities that could potentially be exploited.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

#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

#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

#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

#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

#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

#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

#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