{"id":"CVE-2020-15194","aliases":["BIT-tensorflow-2020-15194","GHSA-9mqp-7v2h-2382","PYSEC-2020-117","PYSEC-2020-274","PYSEC-2020-309"],"url":"https://o3.security/vulnerability/CVE-2020-15194","summary":"Denial of Service in Tensorflow","details":"### Impact\nThe `SparseFillEmptyRowsGrad` implementation has incomplete validation of the shapes of its arguments:\nhttps://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/sparse_fill_empty_rows_op.cc#L235-L241\n\nAlthough `reverse_index_map_t` and `grad_values_t` are accessed in a similar pattern, only `reverse_index_map_t` is validated to be of proper shape. Hence, malicious users can pass a bad `grad_values_t` to trigger an assertion failure in `vec`, causing denial of service in serving installations.\n\n### Patches\nWe have patched the issue in 390611e0d45c5793c7066110af37c8514e6a6c54 and will release a patch release for all affected versions.\n\nWe recommend users to upgrade to TensorFlow 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability is a variant of [GHSA-63xm-rx5p-xvqr](https://github.com/tensorflow/tensorflow/security/advisories/GHSA-63xm-rx5p-xvqr)","published":"2020-09-25T19:15:14.683Z","modified":"2026-08-07T17:27:50.396805Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"1.15.4"},{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.0.3"},{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.1.2"},{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.2.1"},{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.3.1"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"1.15.4"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.0.3"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.1.2"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.2.1"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.3.1"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"1.15.4"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.0.3"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.1.2"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.2.1"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.3.1"}],"fix":{"url":"https://github.com/tensorflow/tensorflow/commit/390611e0d45c5793c7066110af37c8514e6a6c54","label":"tensorflow/tensorflow@390611e"},"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html"},{"type":"ADVISORY","url":"https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/390611e0d45c5793c7066110af37c8514e6a6c54"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9mqp-7v2h-2382"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15194"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-274.yaml"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-309.yaml"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-117.yaml"},{"type":"PACKAGE","url":"https://github.com/tensorflow/tensorflow"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:27:50.396805Z"}}