{"id":"UBUNTU-CVE-2018-16999","details":"Netwide Assembler (NASM) 2.14rc15 has an invalid memory write (segmentation fault) in expand_smacro in preproc.c, which allows attackers to cause a denial of service via a crafted input file.","modified":"2026-04-28T16:25:52.709510Z","published":"2018-09-13T16:29:00Z","upstream":["CVE-2018-16999"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16999"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-16999"}],"affected":[{"package":{"name":"nasm","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nasm@2.11.08-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.11.06-1really2.11.05-1","2.11.08-1","2.11.08-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"nasm","binary_version":"2.11.08-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16999.json"}},{"package":{"name":"nasm","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nasm@2.13.02-0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.13.01-2","2.13.02-0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"nasm","binary_version":"2.13.02-0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16999.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}