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MFSA2023-29 Firefox: Security Vulnerabilities fixed in Firefox 116 (CVE-2023-4052)

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MFSA2023-29 Firefox: Security Vulnerabilities fixed in Firefox 116 (CVE-2023-4052)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/01/2023
Created
08/02/2023
Added
08/02/2023
Modified
08/09/2023

Description

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

Solution(s)

  • mozilla-firefox-upgrade-116_0

References

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