Race Condition Affecting thunderbird package, versions <0:68.2.0-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.3% (71st percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRD-1677678
  • published27 Sept 2021
  • disclosed8 Jan 2020

Introduced: 8 Jan 2020

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

How to fix?

Upgrade Amazon-Linux:2 thunderbird to version 0:68.2.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1376.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1