{"schema_version":"1.7.5","id":"UBUNTU-CVE-2022-3996","published":"2022-12-13T16:15:00Z","modified":"2026-04-22T13:28:17.003742Z","related":["USN-6039-1"],"upstream":["CVE-2022-3996"],"details":"If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively.  On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs.  Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.","affected":[{"package":{"name":"edk2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/edk2@0~20160408.ffea0a2c-2ubuntu0.2+esm3?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20150106.5c2d456b-2","0~20160104.c2a892d7-1","0~20160408.ffea0a2c-2","0~20160408.ffea0a2c-2ubuntu0.1","0~20160408.ffea0a2c-2ubuntu0.2","0~20160408.ffea0a2c-2ubuntu0.2+esm1","0~20160408.ffea0a2c-2ubuntu0.2+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"ovmf","binary_version":"0~20160408.ffea0a2c-2ubuntu0.2+esm3"},{"binary_name":"qemu-efi","binary_version":"0~20160408.ffea0a2c-2ubuntu0.2+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-3996.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/openssl@3.0.2-0ubuntu1.9?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-0ubuntu1.9"}]}],"versions":["1.1.1l-1ubuntu1","3.0.0-1ubuntu1","3.0.1-0ubuntu1","3.0.2-0ubuntu1","3.0.2-0ubuntu1.1","3.0.2-0ubuntu1.2","3.0.2-0ubuntu1.4","3.0.2-0ubuntu1.5","3.0.2-0ubuntu1.6","3.0.2-0ubuntu1.7","3.0.2-0ubuntu1.8"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssl3","binary_version":"3.0.2-0ubuntu1.9"},{"binary_name":"openssl","binary_version":"3.0.2-0ubuntu1.9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-3996.json"}}],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-3996"},{"type":"REPORT","url":"https://www.openssl.org/news/secadv/20221213.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6039-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-3996"}],"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":"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":"low"}]}