Use After Free Affecting firefox-esr package, versions <45.3.0esr-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 2.36% (90th percentile)
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NVD
8.8 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-DEBIAN10-FIREFOXESR-354585
  • published 5 Aug 2016
  • disclosed 5 Aug 2016

How to fix?

Upgrade Debian:10 firefox-esr to version 45.3.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop.