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Amazon Linux AMI 2: CVE-2020-26951: Security patch for thunderbird (ALAS-2021-1586)

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Amazon Linux AMI 2: CVE-2020-26951: Security patch for thunderbird (ALAS-2021-1586)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
12/09/2020
Created
01/09/2021
Added
01/08/2021
Modified
09/30/2022

Description

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Solution(s)

  • amazon-linux-ami-2-upgrade-thunderbird
  • amazon-linux-ami-2-upgrade-thunderbird-debuginfo

References

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