{"action":"Upgrade firefox-esr to 45.9.0esr-1 or later.","affected":[{"fixed":"45.9.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["45.9.0esr-1"],"id":"tcs_01M5NCEK1AW8WQWFX9BC9SRM65","modified_at":"2026-09-01T20:03:48.331839879Z","published_at":"2018-06-11T21:29:05.983Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-5440","https://security-tracker.debian.org/tracker/CVE-2017-5440"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-5440","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-5440"}],"summary":"A use-after-free vulnerability during XSLT processing due to a failure to propagate error conditions during matching while evaluating context, leading to objects being used when they no longer exist."}