Race Condition The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


Threat Intelligence

EPSS
0.41% (61st percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-579441
  • published22 Oct 2019
  • disclosed8 Jan 2020

Introduced: 22 Oct 2019

CVE-2019-11761  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-862  (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.

By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.