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Use After Free Affecting firefox-esr package, versions <45.3.0esr-1~deb8u1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
3.02% (92nd percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-354583
  • published5 Aug 2016
  • disclosed5 Aug 2016
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Introduced: 5 Aug 2016

CVE-2016-5259  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 45.3.0esr-1~deb8u1 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:8 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.