Out-of-bounds Write Affecting thunderbird-debuginfo package, versions <0:68.8.0-1.amzn2


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRDDEBUGINFO-1680017
  • published27 Sept 2021
  • disclosed24 Apr 2020

Introduced: 24 Apr 2020

CVE-2020-6822  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird-debuginfo to version 0:68.8.0-1.amzn2 or higher.
This issue was patched in ALAS2-2020-1429.

NVD Description

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

On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

CVSS Scores

version 3.1