{"id":"CVE-2020-27830","details":"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 deref crash.","modified":"2026-03-15T22:35:34.281789Z","published":"2021-05-13T15:15:07.577Z","related":["MGASA-2021-0030","MGASA-2021-0031","SUSE-SU-2021:0096-1","SUSE-SU-2021:0108-1","SUSE-SU-2021:0117-1","openSUSE-SU-2021:0060-1","openSUSE-SU-2021:0242-1"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210625-0004/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4843"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/12/08/1"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/12/08/4"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1919900"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.9.14"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27830.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}