{"action":"Upgrade linux to 5.5.17-1 or later.","affected":[{"fixed":"5.5.17-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.5.17-1"],"id":"tcs_01M5NEXVR6SASTTC11ZNEMRVHA","modified_at":"2026-09-11T11:02:43.812004035Z","published_at":"2020-12-15T17:15:14.160Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-27066","https://security-tracker.debian.org/tracker/CVE-2020-27066"],"severity":{"label":"medium","score":6.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-27066#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-27066"}],"summary":"In xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges neede"}