Red Hat: CVE-2021-23999: CVE-2021-23999 Mozilla: Blob URLs may have been granted additional privileges (Multiple Advisories)
7
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
04/26/2021
04/27/2021
04/27/2021
12/15/2023
Description
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Solution(s)
- redhat-upgrade-firefox
- redhat-upgrade-firefox-debuginfo
- redhat-upgrade-firefox-debugsource
- redhat-upgrade-thunderbird
- redhat-upgrade-thunderbird-debuginfo
- redhat-upgrade-thunderbird-debugsource
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