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CentOS Linux: CVE-2020-26951: Important: thunderbird security update (Multiple Advisories)

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CentOS Linux: CVE-2020-26951: Important: thunderbird security update (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
11/30/2020
Created
12/02/2020
Added
12/01/2020
Modified
05/25/2023

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)

  • centos-upgrade-firefox
  • centos-upgrade-firefox-debuginfo
  • centos-upgrade-firefox-debugsource
  • centos-upgrade-thunderbird
  • centos-upgrade-thunderbird-debuginfo
  • centos-upgrade-thunderbird-debugsource

References

  • CVE-2020-26951

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