CVE-2019-11691

CVE-2019-11691

EPSS 1.6%

A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1542465 https://www.mozilla.org/security/advisories/mfsa2019-13/https://www.mozilla.org/security/advisories/mfsa2019-14/https://www.mozilla.org/security/advisories/mfsa2019-15/