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Use After Free Affecting firefox-esr package, versions <60.6.0esr-1~deb8u1

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.88% (84th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-340899
  • published20 Mar 2019
  • disclosed26 Apr 2019
Report a new vulnerability Found a mistake?

Introduced: 20 Mar 2019

CVE-2019-9796  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 60.6.0esr-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.

A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.