{"id":"UBUNTU-CVE-2023-38665","details":"Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash).","modified":"2026-05-20T16:13:46.545555950Z","published":"2023-08-22T19:16:00Z","upstream":["CVE-2023-38665"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-38665"},{"type":"REPORT","url":"https://bugzilla.nasm.us/show_bug.cgi?id=3392818"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-38665"}],"affected":[{"package":{"name":"nasm","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nasm?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"}],"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.json"}},{"package":{"name":"nasm","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nasm?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.13.01-2","2.13.02-0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.13.02-0.1","binary_name":"nasm"}],"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.json"}},{"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_name":"nasm","binary_version":"2.14.02-1"}],"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.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"}],"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.json"}},{"package":{"name":"nasm","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/nasm?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16.01-1","2.16.01-1build1","2.16.01-1ubuntu0.1~esm1","2.16.01-1ubuntu0.1~esm2"],"ecosystem_specific":{"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue.","binaries":[{"binary_version":"2.16.01-1ubuntu0.1~esm2","binary_name":"nasm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.json"}},{"package":{"name":"nasm","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/nasm?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16.03-1"],"ecosystem_specific":{"binaries":[{"binary_name":"nasm","binary_version":"2.16.03-1"}],"priority_reason":"john-breton\u003e Crash in CLI tool, hardly a security issue."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38665.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":"low"}]}