{"id":"UBUNTU-CVE-2026-5437","details":"An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic.","modified":"2026-05-26T19:29:31.030060618Z","published":"2026-04-09T15:16:00Z","upstream":["CVE-2026-5437"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-5437"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-5437"},{"type":"REPORT","url":"https://kb.cert.org/vuls/id/536588"},{"type":"REPORT","url":"https://www.machinespirits.de/"},{"type":"REPORT","url":"https://www.orthanc-server.com/"}],"affected":[{"package":{"name":"orthanc","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.4+dfsg-1","0.9.4+dfsg-2","0.9.5+dfsg-1","1.0.0+dfsg-1","1.0.0+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"orthanc","binary_version":"1.0.0+dfsg-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0+dfsg-1build1","1.3.0+dfsg-1build2","1.3.1+dfsg-1","1.3.1+dfsg-1build1","1.3.1+dfsg-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.1+dfsg-1build2","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.7+dfsg-2","1.5.8+dfsg-2","1.5.8+dfsg-2ubuntu2","1.5.8+dfsg-2ubuntu3","1.5.8+dfsg-2ubuntu4","1.5.8+dfsg-2ubuntu5","1.5.8+dfsg-2ubuntu6"],"ecosystem_specific":{"binaries":[{"binary_name":"orthanc","binary_version":"1.5.8+dfsg-2ubuntu6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.2+really1.9.1+dfsg-1","1.9.7+dfsg-3ubuntu1","1.9.7+dfsg-3ubuntu2","1.9.7+dfsg-4","1.9.7+dfsg-5","1.9.7+dfsg-6","1.10.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"liborthancframework1","binary_version":"1.10.0+dfsg-1"},{"binary_version":"1.10.0+dfsg-1","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.1+dfsg-3","1.12.1+dfsg-4","1.12.1+dfsg-4build1","1.12.2+dfsg-1","1.12.2+dfsg-1build3","1.12.2+dfsg-1build4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.12.2+dfsg-1build4","binary_name":"liborthancframework1"},{"binary_name":"orthanc","binary_version":"1.12.2+dfsg-1build4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.6+dfsg-1","1.12.7+dfsg-4","1.12.7+dfsg-4build2"],"ecosystem_specific":{"binaries":[{"binary_name":"liborthancframework1","binary_version":"1.12.7+dfsg-4build2"},{"binary_name":"orthanc","binary_version":"1.12.7+dfsg-4build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.7+dfsg-4build2","1.12.9+dfsg-2","1.12.10+dfsg-1","1.12.10+dfsg-1build1","1.12.10+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"liborthancframework1","binary_version":"1.12.10+dfsg-2"},{"binary_version":"1.12.10+dfsg-2","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5437.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}