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Access of Resource Using Incompatible Type ('Type Confusion') The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)

Threat Intelligence

EPSS
0.67% (71st percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-596018
  • published29 Jul 2020
  • disclosed10 Aug 2020
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Introduced: 29 Jul 2020

CVE-2020-15656  (opens in a new tab)
CWE-843  (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.

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.