{"id":"CVE-2020-15204","aliases":["BIT-tensorflow-2020-15204","GHSA-q8gv-q7wr-9jf8","PYSEC-2020-127","PYSEC-2020-284","PYSEC-2020-319"],"url":"https://o3.security/vulnerability/CVE-2020-15204","summary":"Segfault in Tensorflow","details":"In eager mode, TensorFlow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1 does not set the session state. Hence, calling `tf.raw_ops.GetSessionHandle` or `tf.raw_ops.GetSessionHandleV2` results in a null pointer dereference In linked snippet, in eager mode, `ctx->session_state()` returns `nullptr`. Since code immediately dereferences this, we get a segmentation fault. The issue is patched in commit 9a133d73ae4b4664d22bd1aa6d654fec13c52ee1, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.","published":"2020-09-25T19:15:15.713Z","modified":"2026-08-07T16:35:58.862257Z","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/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1","label":"tensorflow/tensorflow@9a133d7"},"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/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1"},{"type":"EVIDENCE","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T16:35:58.862257Z"}}