{"action":"Upgrade qemu to 1:4.1-1 or later.","affected":[{"fixed":"1:4.1-1","introduced":"0"}],"component":"qemu","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:4.1-1"],"id":"tcs_01M5NDADF0ZSX7PD4AC66V00RM","modified_at":"2026-10-23T18:03:20.977519402Z","published_at":"2018-12-20T23:29:02.223Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-20191","https://security-tracker.debian.org/tracker/CVE-2018-20191"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-20191#Debian:13/qemu","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-20191"}],"summary":"hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference)."}