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Oracle Linux: CVE-2021-38503: ELSA-2021-4116: firefox security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2021-38503: ELSA-2021-4116: firefox security update (IMPORTANT) (Multiple Advisories)

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
11/02/2021
Created
11/06/2021
Added
11/04/2021
Modified
12/06/2024

Description

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. The Mozilla Foundation Security Advisory describes this flaw as: The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame.

Solution(s)

  • oracle-linux-upgrade-firefox
  • oracle-linux-upgrade-thunderbird

References

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