By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were functional on a user's system. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Link | Tags |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1883693 | issue tracking permissions required |
https://lists.debian.org/debian-lts-announce/2024/06/msg00000.html | mailing list |
https://lists.debian.org/debian-lts-announce/2024/06/msg00010.html | mailing list |
https://www.mozilla.org/security/advisories/mfsa2024-25/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-26/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-28/ | vendor advisory |