{"id":"CVE-2012-3376","aliases":["EUVD-2022-5000","GHSA-qmh2-h7r6-gm6q"],"status":"published","title":"Client BlockTokens not checked in Apache Hadoop","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02633,"percentile":0.85641,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-310"],"published":"2012-07-12T19:00:00Z","modified":"2026-06-16T23:43:06Z","fixes":[{"ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","fixed_in":["2.0.1-alpha"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0-alpha"},{"last_affected":"2.0.0-alpha"},{"fixed":"2.0.1-alpha"}]}],"versions":["2.0.0-alpha"]},{"source":"osv","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0-alpha"},{"fixed":"2.0.1-alpha"}]}],"versions":["2.0.0-alpha"]}],"products":[{"vendor":"apache","product":"hadoop"}],"references":[{"url":"https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2012-07/0049.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/54358","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-3376","tags":["advisory"]},{"url":"https://seclists.org/fulldisclosure/2012/Jul/78","tags":["web"]},{"url":"https://github.com/advisories/GHSA-qmh2-h7r6-gm6q"},{"url":"https://github.com/apache/hadoop","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2012-3376","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","status":"published","published":"2012-07-12T19:00:00Z","modified":"2024-08-06T20:05:12.54Z","updated_at":"2026-11-02T14:34:50.94153Z"}],"euvd":[{"id":"EUVD-2022-5000","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","status":"published","published":"2012-07-12T19:00:00Z","modified":"2024-08-06T20:05:12Z","updated_at":"2026-11-03T01:56:10.882899Z"}],"ghsa":[{"id":"GHSA-qmh2-h7r6-gm6q","title":"Client BlockTokens not checked in Apache Hadoop","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","status":"published","published":"2022-05-17T02:54:07Z","modified":"2023-01-27T05:02:22Z","updated_at":"2026-11-02T14:36:17.742171Z"}],"nvd":[{"id":"CVE-2012-3376","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","status":"published","published":"2012-07-12T19:55:06.343Z","modified":"2026-06-16T23:43:06.303Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:14.774945Z"}],"osv":[{"id":"GHSA-qmh2-h7r6-gm6q","title":"Client BlockTokens not checked in Apache Hadoop","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","status":"published","published":"2022-05-17T02:54:07Z","modified":"2023-11-08T03:57:05.91736Z","updated_at":"2026-11-02T15:46:54.760124Z"}]}}