{"id":"UBUNTU-CVE-2012-5573","details":"The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.","modified":"2025-07-16T08:16:09.743607Z","published":"2013-01-01T12:35:00Z","withdrawn":"2025-07-18T16:42:47Z","upstream":["CVE-2012-5573"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2012-5573"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2012/11/26/11"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2012-5573"}],"affected":[{"package":{"name":"tor","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tor@0.2.3.25-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.3.25-1"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.2.3.25-1","binary_name":"tor"},{"binary_version":"0.2.3.25-1","binary_name":"tor-dbg"},{"binary_version":"0.2.3.25-1","binary_name":"tor-geoipdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2012/UBUNTU-CVE-2012-5573.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}