A use-after-free vulnerability can occur in Firefox before 61.0 and Thunderbird before 52.9 when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash.
A use-after-free vulnerability can occur in Firefox before 61.0 and Thunderbird before 52.9 when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash.
https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-12363 https://bugzilla.mozilla.org/show_bug.cgi?id=1464784
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