{"id":"UBUNTU-CVE-2026-8484","details":"A heap buffer overflow vulnerability exists in the Jansi JNI \"ioctl()\" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS). All versions are believed to be vulnerable. This project is unmaintained at the time of CVE assignment.","modified":"2026-06-24T11:00:48.682978068Z","published":"2026-06-16T12:16:00Z","upstream":["CVE-2026-8484"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-8484"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-8484"}],"affected":[{"package":{"name":"jansi","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"1.4-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"1.4-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.16-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"1.16-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.18-1","binary_name":"libjansi-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"1.18-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.0-2","2.4.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"2.4.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"2.4.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}},{"package":{"name":"jansi","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/jansi?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1-2","2.4.1-2build1","2.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjansi-java","binary_version":"2.4.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8484.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}