[MFSA-2022-03] Security Vulnerabilities fixed in Thunderbird 91.5

Severity High
Affected Packages 1
Fixed Packages 1
CVEs 14

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-2021-4140: Iframe sandbox bypass with XSLT (high)
    It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox.

  • CVE-2022-22737: Race condition when playing audio files (high)
    Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash.

  • CVE-2022-22738: Heap-buffer-overflow in blendGaussianBlur (high)
    Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash.

  • CVE-2022-22739: Missing throttling on external protocol launch dialog (low)
    Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol.

  • CVE-2022-22740: Use-after-free of ChannelEventQueue::mOwner (high)
    Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a potentially exploitable crash.

  • CVE-2022-22741: Browser window spoof using fullscreen mode (high)
    When resizing a popup while requesting fullscreen access, the popup would have become unable to leave fullscreen mode.

  • CVE-2022-22742: Out-of-bounds memory access when inserting text in edit mode (high)
    When inserting text while in edit mode, some characters might have lead to out-of-bounds memory access causing a potentially exploitable crash.

  • CVE-2022-22743: Browser window spoof using fullscreen mode (high)
    When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode.

  • CVE-2022-22744: The 'Copy as curl' feature in DevTools did not fully escape website-controlled data, potentially leading to command injection (moderate)
    The constructed curl command from the "Copy as curl" feature in DevTools was not properly escaped for PowerShell. This could have lead to command injection if pasted into a Powershell prompt.
    This bug only affects Thunderbird for Windows. Other operating systems are unaffected.

  • CVE-2022-22745: Leaking cross-origin URLs through securitypolicyviolation event (moderate)
    Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations

  • CVE-2022-22746: Calling into reportValidity could have lead to fullscreen window spoof (high)
    A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window spoof being unnoticed.
    This bug only affects Firefox for Windows. Other operating systems are unaffected.

  • CVE-2022-22747: Crash when handling empty pkcs7 sequence (low)
    After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable.

  • CVE-2022-22748: Spoofed origin on external protocol launch dialog (moderate)
    Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol.

  • CVE-2022-22751: Memory safety bugs fixed in Thunderbird 91.5 (high)
    Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. 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 < 91.5
Package Fixed Version
pkg:mozilla/Thunderbird = 91.5
Source # ID Name URL
Bugzilla 1746720 https://bugzilla.mozilla.org/show_bug.cgi?id=1746720
Bugzilla 1745874 https://bugzilla.mozilla.org/show_bug.cgi?id=1745874
Bugzilla 1742382 https://bugzilla.mozilla.org/show_bug.cgi?id=1742382
Bugzilla 1744158 https://bugzilla.mozilla.org/show_bug.cgi?id=1744158
Bugzilla 1742334 https://bugzilla.mozilla.org/show_bug.cgi?id=1742334
Bugzilla 1740389 https://bugzilla.mozilla.org/show_bug.cgi?id=1740389
Bugzilla 1739923 https://bugzilla.mozilla.org/show_bug.cgi?id=1739923
Bugzilla 1739220 https://bugzilla.mozilla.org/show_bug.cgi?id=1739220
Bugzilla 1737252 https://bugzilla.mozilla.org/show_bug.cgi?id=1737252
Bugzilla 1735856 https://bugzilla.mozilla.org/show_bug.cgi?id=1735856
Bugzilla 1735071 https://bugzilla.mozilla.org/show_bug.cgi?id=1735071
Bugzilla 1735028 https://bugzilla.mozilla.org/show_bug.cgi?id=1735028
Bugzilla 1705211 https://bugzilla.mozilla.org/show_bug.cgi?id=1705211
Bugzilla 1664149 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1664149
Bugzilla 1737816 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1737816
Bugzilla 1739366 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1739366
Bugzilla 1740274 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1740274
Bugzilla 1740797 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1740797
Bugzilla 1741201 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1741201
Bugzilla 1741869 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1741869
Bugzilla 1743221 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1743221
Bugzilla 1743515 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1743515
Bugzilla 1745373 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1745373
Bugzilla 1746011 Memory safety bugs fixed in Thunderbird 91.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1746011
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:mozilla/Thunderbird Thunderbird < 91.5
Fixed pkg:mozilla/Thunderbird Thunderbird = 91.5
# 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
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