{"id":"UBUNTU-CVE-2025-54494","details":"A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability manifests on line 9205 of biosig.c on the current master branch (35a819fa), when the Tag is 133:                 else if (tag==133)    //0x85                 {                     curPos += ifread(buf,1,len,hdr);","modified":"2026-01-20T19:03:34.635675Z","published":"2025-08-25T14:15:00Z","upstream":["CVE-2025-54494"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-54494"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-54494"},{"type":"REPORT","url":"https://sourceforge.net/p/biosig/mailman/message/59224259/"},{"type":"REPORT","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"}],"affected":[{"package":{"name":"biosig","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/biosig@2.3.3-1build2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2-4","2.1.2-4build1","2.1.2-4build2","2.3.3-1","2.3.3-1build1","2.3.3-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.3-1build2","binary_name":"biosig-tools"},{"binary_version":"2.3.3-1build2","binary_name":"libbiosig-dev"},{"binary_version":"2.3.3-1build2","binary_name":"libbiosig3"},{"binary_version":"2.3.3-1build2","binary_name":"octave-biosig"},{"binary_version":"2.3.3-1build2","binary_name":"python3-biosig"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54494.json"}},{"package":{"name":"biosig","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/biosig@2.6.0-1ubuntu1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.0-1build2","2.5.2-1","2.5.2-1build1","2.5.2-2","2.6.0-1","2.6.0-1build1","2.6.0-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.0-1ubuntu1","binary_name":"biosig-tools"},{"binary_version":"2.6.0-1ubuntu1","binary_name":"libbiosig-dev"},{"binary_version":"2.6.0-1ubuntu1","binary_name":"libbiosig3"},{"binary_version":"2.6.0-1ubuntu1","binary_name":"octave-biosig"},{"binary_version":"2.6.0-1ubuntu1","binary_name":"python3-biosig"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54494.json"}},{"package":{"name":"biosig","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/biosig@3.9.0-1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.1-1build3","3.9.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.9.0-1","binary_name":"biosig-tools"},{"binary_version":"3.9.0-1","binary_name":"libbiosig-dev"},{"binary_version":"3.9.0-1","binary_name":"libbiosig3"},{"binary_version":"3.9.0-1","binary_name":"octave-biosig"},{"binary_version":"3.9.0-1","binary_name":"python3-biosig"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54494.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}