{"id":"UBUNTU-CVE-2023-31973","details":"** DISPUTED ** yasm v1.3.0 was discovered to contain a use after free via the function expand_mmac_params at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.","modified":"2023-05-09T14:15:00Z","published":"2023-05-09T14:15:00Z","withdrawn":"2025-06-23T15:56:51Z","references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-31973"},{"type":"REPORT","url":"https://github.com/yasm/yasm/issues/207"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-31973"}],"affected":[{"package":{"name":"yasm","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/yasm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-31973.json"}},{"package":{"name":"yasm","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/yasm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2","1.3.0-2build1"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-31973.json"}},{"package":{"name":"yasm","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/yasm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2build1","1.3.0-2ubuntu1"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-31973.json"}},{"package":{"name":"yasm","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/yasm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2.1"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-31973.json"}},{"package":{"name":"yasm","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/yasm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-4"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-31973.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}