Out-of-Bounds Affecting firefox-esr package, versions <60.6.0esr-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
17.25% (97th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOXESR-340869
  • published20 Mar 2019
  • disclosed26 Apr 2019

Introduced: 20 Mar 2019

CVE-2019-9792  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

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

The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

CVSS Scores

version 3.1