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CVE-2017-7793 PUBLISHED

A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

EPSS 2.44% · 85.0th percentile

Risk Scores

EPSS Score
2.44%
85.0th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSthunderbird0
Ubuntu:18.04:LTSfirefox0
Ubuntu:16.04:LTSfirefox55.0.2+build1-0ubuntu0.16.04.1, 55.0.1+build2-0ubuntu0.16.04.2, 54.0+build3-0ubuntu0.16.04.1
Ubuntu:14.04:LTSfirefox42.0+build2-0ubuntu0.14.04.1, 43.0+build1-0ubuntu0.14.04.1, 43.0.4+build3-0ubuntu0.14.04.1
Ubuntu:16.04:LTSthunderbird1:38.5.1+build2-0ubuntu1, 1:38.6.0+build1-0ubuntu1, 1:38.7.2+build1-0ubuntu0.16.04.1
Ubuntu:14.04:LTSthunderbird1:38.2.0+build1-0ubuntu0.14.04.1, 1:31.8.0+build1-0ubuntu0.14.04.1, 1:31.7.0+build1-0ubuntu0.14.04.1

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