{"action":"Upgrade thunderbird to 1:52.9.0-1 or later.","affected":[{"fixed":"1:52.9.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:52.9.0-1"],"id":"tcs_01M5NCZJZ2SS778N5849VT85ZN","modified_at":"2026-10-23T18:02:58.698535861Z","published_at":"2018-10-18T13:29:00.540Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-12359","https://security-tracker.debian.org/tracker/CVE-2018-12359"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-12359#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-12359"}],"summary":"A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundarie"}