Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
19.72% (96th percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-580912
  • 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)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu.

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.