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Use After Free Affecting firefox-esr package, versions <52.5.0esr-1

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.4% (75th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOXESR-355249
  • published11 Jun 2018
  • disclosed11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2017-7828  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox-esr to version 52.5.0esr-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:unstable relevant fixed versions and status.

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

References