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[MFSA-2022-49] Security Vulnerabilities fixed in Thunderbird 102.5

Severity High
Affected Packages 1
Fixed Packages 1
CVEs 13
Info Packages References Vulnerabilities

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-2022-45403: Service Workers might have learned size of cross-origin media files (high)
    Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file.

  • CVE-2022-45404: Fullscreen notification bypass (high)
    Through a series of popup and <code>window.print()</code> calls, an attacker can cause a window to go fullscreen without the user seeing the notification prompt, resulting in potential user confusion or spoofing attacks.

  • CVE-2022-45405: Use-after-free in InputStream implementation (high)
    Freeing arbitrary <code>nsIInputStream</code>'s on a different thread than creation could have led to a use-after-free and potentially exploitable crash.

  • CVE-2022-45406: Use-after-free of a JavaScript Realm (high)
    If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash.

  • CVE-2022-45408: Fullscreen notification bypass via windowName (high)
    Through a series of popups that reuse windowName, an attacker can cause a window to go fullscreen without the user seeing the notification prompt, resulting in potential user confusion or spoofing attacks.

  • CVE-2022-45409: Use-after-free in Garbage Collection (high)
    The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called, leading to a use-after-free and potentially exploitable crash

  • CVE-2022-45410: ServiceWorker-intercepted requests bypassed SameSite cookie policy (moderate)
    When a ServiceWorker intercepted a request with <code>FetchEvent</code>, the origin of the request was lost after the ServiceWorker took ownership of it. This had the effect of negating SameSite cookie protections. This was addressed in the spec and then in browsers.

  • CVE-2022-45411: Cross-Site Tracing was possible via non-standard override headers (moderate)
    Cross-Site Tracing occurs when a server will echo a request back via the Trace method, allowing an XSS attack to access to authorization headers and cookies inaccessible to JavaScript (such as cookies protected by HTTPOnly). To mitigate this attack, browsers placed limits on <code>fetch()</code> and XMLHttpRequest; however some webservers have implemented non-standard headers such as <code>X-Http-Method-Override</code> that override the HTTP method, and made this attack possible again. Thunderbird has applied the same mitigations to the use of this and similar headers.

  • CVE-2022-45412: Symlinks may resolve to partially uninitialized buffers (moderate)
    When resolving a symlink such as <code>file:///proc/self/fd/1</code>, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer.
    This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). Windows is unaffected.

  • CVE-2022-45416: Keystroke Side-Channel Leakage (moderate)
    Keyboard events reference strings like "KeyA" that were at fixed, known, and widely-spread addresses. Cache-based timing attacks such as Prime+Probe could have possibly figured out which keys were being pressed.

  • CVE-2022-45418: Custom mouse cursor could have been drawn over browser UI (moderate)
    If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks.

  • CVE-2022-45420: Iframe contents could be rendered outside the iframe (low)
    Use tables inside of an iframe, an attacker could have caused iframe contents to be rendered outside the boundaries of the iframe, resulting in potential user confusion or spoofing attacks.

  • CVE-2022-45421: Memory safety bugs fixed in Thunderbird 102.5 (high)
    Mozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.4. 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.

Package Affected Version
pkg:mozilla/Thunderbird < 102.5
Package Fixed Version
pkg:mozilla/Thunderbird = 102.5
ID
MFSA-2022-49
Severity
high
URL
https://www.mozilla.org/en-US/security/advisories/mfsa2022-49
Published
2022-11-15T00:00:00
(22 months ago)
Modified
2022-11-15T00:00:00
(22 months ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:mozilla/Thunderbird Thunderbird < 102.5
Fixed pkg:mozilla/Thunderbird Thunderbird = 102.5
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date