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Debian: CVE-2021-23968: firefox-esr, thunderbird -- security update

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Debian: CVE-2021-23968: firefox-esr, thunderbird -- security update

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
02/26/2021
Created
02/27/2021
Added
02/26/2021
Modified
03/05/2021

Description

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Solution(s)

  • debian-upgrade-firefox-esr
  • debian-upgrade-thunderbird

References

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