{"id":"CVE-2019-12410","details":"While investigating UBSAN errors in https://github.com/apache/arrow/pull/5365 it was discovered Apache Arrow versions 0.12.0 to 0.14.1, left memory Array data uninitialized when reading RLE null data from parquet. This affected the C++, Python, Ruby and R implementations. The uninitialized memory could potentially be shared if are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.","aliases":["GHSA-cjw4-2w9r-r8mv","PYSEC-2019-196"],"modified":"2026-03-12T22:58:33.479232Z","published":"2019-11-08T19:15:10.287Z","references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269%40%3Cdev.arrow.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073%40%3Cannounce.apache.org%3E"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2019/11/08/1"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/arrow","events":[{"introduced":"8ca41384b5324bfd0ef3d3ed3f728e1d10ed73f0"},{"last_affected":"5f564424c71cef12619522cdde59be5f69b31b68"}],"database_specific":{"versions":[{"introduced":"0.12.0"},{"last_affected":"0.14.1"}]}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-12410.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"}]}