[MFSA-2016-96] Security vulnerabilities fixed in Thunderbird 45.6

Severity Critical
Affected Packages 1
Fixed Packages 1
CVEs 8

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-2016-9893: Memory safety bugs fixed in Thunderbird 45.6 (critical)
    Mozilla developers and community members Jan de Mooij, Iris Hsiao, Christian Holler, Carsten Book, Timothy Nikkel, Christoph Diehl, Olli Pettay, Raymond Forbes, and Boris Zbarsky reported memory safety bugs present in Thunderbird 45.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.

  • CVE-2016-9895: CSP bypass using marquee tag (high)
    Event handlers on <code>marquee</code> elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript.

  • CVE-2016-9897: Memory corruption in libGLES (high)
    Memory corruption resulting in a potentially exploitable crash during WebGL functions using a vector constructor with a varying array within libGLES.

  • CVE-2016-9898: Use-after-free in Editor while manipulating DOM subtrees (high)
    Use-after-free resulting in potentially exploitable crash when manipulating DOM subtrees in the Editor.

  • CVE-2016-9899: Use-after-free while manipulating DOM events and audio elements (critical)
    Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption.

  • CVE-2016-9900: Restricted external resources can be loaded by SVG images through data URLs (high)
    External resources that should be blocked when loaded by SVG images can bypass security restrictions through the use of <code>data:</code> URLs. This could allow for cross-domain data leakage.

  • CVE-2016-9904: Cross-origin information leak in shared atoms (high)
    An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites.

  • CVE-2016-9905: Crash in EnumerateSubDocuments (high)
    A potentially exploitable crash in <code>EnumerateSubDocuments</code> while adding or removing sub-documents.

Package Affected Version
pkg:mozilla/Thunderbird < 45.6
Package Fixed Version
pkg:mozilla/Thunderbird = 45.6
Source # ID Name URL
Bugzilla 1319524 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1319524
Bugzilla 1298773 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1298773
Bugzilla 1299098 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1299098
Bugzilla 1309834 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1309834
Bugzilla 1312609 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1312609
Bugzilla 1313212 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1313212
Bugzilla 1317805 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1317805
Bugzilla 1312548 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1312548
Bugzilla 1315631 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1315631
Bugzilla 1287912 Memory safety bugs fixed in Thunderbird 45.6 https://bugzilla.mozilla.org/show_bug.cgi?id=1287912
Bugzilla 1312272 https://bugzilla.mozilla.org/show_bug.cgi?id=1312272
Bugzilla 1301381 https://bugzilla.mozilla.org/show_bug.cgi?id=1301381
Bugzilla 1314442 https://bugzilla.mozilla.org/show_bug.cgi?id=1314442
Bugzilla 1317409 https://bugzilla.mozilla.org/show_bug.cgi?id=1317409
Bugzilla 1319122 https://bugzilla.mozilla.org/show_bug.cgi?id=1319122
Bugzilla 1317936 https://bugzilla.mozilla.org/show_bug.cgi?id=1317936
Bugzilla 1293985 https://bugzilla.mozilla.org/show_bug.cgi?id=1293985
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:mozilla/Thunderbird Thunderbird < 45.6
Fixed pkg:mozilla/Thunderbird Thunderbird = 45.6
# 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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