{"id":"UBUNTU-CVE-2020-21528","details":"A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.","modified":"2026-05-20T16:04:15.024851979Z","published":"2023-08-22T19:16:00Z","upstream":["CVE-2020-21528"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-21528"},{"type":"REPORT","url":"https://bugzilla.nasm.us/show_bug.cgi?id=3392637"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-21528"}],"affected":[{"package":{"name":"nasm","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nasm?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.02-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.14.02-1","binary_name":"nasm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21528.json"}},{"package":{"name":"nasm","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/nasm?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.05-1","2.15.05-1ubuntu0.1~esm1","2.15.05-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.15.05-1ubuntu0.1~esm2","binary_name":"nasm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21528.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}