Exposed Dangerous Method or Function Affecting thunderbird package, versions <0:68.2.0-1.el7_7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.3% (71st percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-7970588
  • published14 Sept 2024
  • disclosed22 Oct 2019

Introduced: 22 Oct 2019

CVE-2019-11761  (opens in a new tab)
CWE-749  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:68.2.0-1.el7_7 or higher.
This issue was patched in RHSA-2019:3210.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:7 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