{"id":"UBUNTU-CVE-2023-34095","details":"cpdb-libs provides frontend and backend libraries for the Common Printing Dialog Backends (CPDB) project. In versions 1.0 through 2.0b4, cpdb-libs is vulnerable to buffer overflows via improper use of `scanf(3)`. cpdb-libs uses the `fscanf()` and `scanf()` functions to parse command lines and configuration files, dropping the read string components into fixed-length buffers, but does not limit the length of the strings to be read by `fscanf()` and `scanf()` causing buffer overflows when a string is longer than 1023 characters. A patch for this issue is available at commit f181bd1f14757c2ae0f17cc76dc20421a40f30b7. As all buffers have a length of 1024 characters, the patch limits the maximum string length to be read to 1023 by replacing all occurrences of `%s` with `%1023s` in all calls of the `fscanf()` and `scanf()` functions.","modified":"2026-04-22T16:46:33.172372Z","published":"2023-06-14T00:00:00Z","related":["USN-6204-1"],"upstream":["CVE-2023-34095"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-34095"},{"type":"REPORT","url":"https://github.com/OpenPrinting/cpdb-libs/security/advisories/GHSA-25j7-9gfc-f46x"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2023/06/14/7"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6204-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-34095"}],"affected":[{"package":{"name":"cpdb-libs","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/cpdb-libs@1.1.1-0ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0-0ubuntu2","1.1.1-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcpdb-libs-common0","binary_version":"1.1.1-0ubuntu1"},{"binary_name":"libcpdb-libs-frontend0","binary_version":"1.1.1-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-34095.json"}},{"package":{"name":"cpdb-libs","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/cpdb-libs@1.2.0-0ubuntu7.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0-0ubuntu7.1"}]}],"versions":["1.2.0-0ubuntu6","1.2.0-0ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_name":"libcpdb-libs-common1","binary_version":"1.2.0-0ubuntu7.1"},{"binary_name":"libcpdb-libs-frontend1","binary_version":"1.2.0-0ubuntu7.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-34095.json"}},{"package":{"name":"cpdb-libs","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/cpdb-libs@1.2.0-0ubuntu8.1.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0-0ubuntu8.1.22.04.1"}]}],"versions":["1.2.0-0ubuntu8"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libcpdb-libs-common1","binary_version":"1.2.0-0ubuntu8.1.22.04.1"},{"binary_version":"1.2.0-0ubuntu8.1.22.04.1","binary_name":"libcpdb-libs-frontend1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-34095.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:H/I:H/A:H"},{"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"}]}