{"id":"CVE-2020-15198","details":"In Tensorflow before version 2.3.1, the `SparseCountSparseOutput` implementation does not validate that the input arguments form a valid sparse tensor. In particular, there is no validation that the `indices` tensor has the same shape as the `values` one. The values in these tensors are always accessed in parallel. Thus, a shape mismatch can result in accesses outside the bounds of heap allocated buffers. The issue is patched in commit 3cbb917b4714766030b28eba9fb41bb97ce9ee02 and is released in TensorFlow version 2.3.1.","aliases":["BIT-tensorflow-2020-15198","GHSA-jc87-6vpp-7ff3","PYSEC-2020-121","PYSEC-2020-278","PYSEC-2020-313"],"modified":"2026-08-18T11:46:24.624454Z","published":"2020-09-25T19:15:15.057Z","references":[{"type":"ADVISORY","url":"https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/3cbb917b4714766030b28eba9fb41bb97ce9ee02"},{"type":"EVIDENCE","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-jc87-6vpp-7ff3"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tensorflow/tensorflow","events":[{"introduced":"b36436b087bd8e8701ef51718179037cccdfc26e"},{"fixed":"fcc4b966f1265f466e82617020af93670141b009"},{"fixed":"3cbb917b4714766030b28eba9fb41bb97ce9ee02"}],"database_specific":{"cpe":"cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*","extracted_events":[{"introduced":"2.3.0"},{"fixed":"2.3.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v2.3.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-15198.json","vanir_signatures_modified":"2026-08-18T11:46:24Z","vanir_signatures":[{"id":"CVE-2020-15198-9a90de26","signature_type":"Line","signature_version":"v1","source":"https://github.com/tensorflow/tensorflow/commit/3cbb917b4714766030b28eba9fb41bb97ce9ee02","target":{"file":"tensorflow/core/kernels/count_ops.cc"},"deprecated":false,"digest":{"line_hashes":["194455449804247006546970132492779615094","178731129031260204571627040095543599818","22442231680206585208932878058814312758","146741406298267783987235037807096346951","270064729730618086481934325402793011741","329344782668638107157103525047366598930","285728407237300076804994927600394619637","310080866930792095910778699557952768464","273815884519049275176915647183401088747","281569265756867032329963835068941296722","59438575670218216172183450249341417337","59397343641890017345404701263589996852","43962453346651511293497165677412754359","137531346914510616513168760830676577742"],"threshold":0.9}}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}