{"action":"Upgrade linux to 5.9.15-1 or later.","affected":[{"fixed":"5.9.15-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.9.15-1"],"id":"tcs_01M5NEZ1KZZSCPC87SW0S9VR47","modified_at":"2026-09-11T11:02:13.555754913Z","published_at":"2021-05-13T15:15:07.577Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-27830","https://security-tracker.debian.org/tracker/CVE-2020-27830"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-27830","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-27830"}],"summary":"A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr de"}