{"action":"Upgrade qemu to 1:6.2+dfsg-1 or later.","affected":[{"fixed":"1:6.2+dfsg-1","introduced":"0"}],"component":"qemu","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:6.2+dfsg-1"],"id":"tcs_01M5NG04Z677VZVQ18HT7GDGXC","modified_at":"2026-10-23T18:03:38.859972081Z","published_at":"2022-01-25T20:15:08.657Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-4145","https://security-tracker.debian.org/tracker/CVE-2021-4145"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-4145#Debian:13/qemu","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-4145"}],"summary":"A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not"}