Debian/firefox-esr: medium 4.3
Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's
Action: Upgrade firefox-esr to 91.3.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 91.3.0esr-1 | - |
Fixed versions
| 91.3.0esr-1 |
Sources
- osv: DEBIAN-CVE-2021-38509#Debian:13/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2021-38509
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