id: PYSEC-2020-284
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.
affected:
- package:
    name: tensorflow-cpu
    ecosystem: PyPI
    purl: pkg:pypi/tensorflow-cpu
  ranges:
  - type: GIT
    repo: https://github.com/tensorflow/tensorflow
    events:
    - introduced: "0"
    - fixed: 9a133d73ae4b4664d22bd1aa6d654fec13c52ee1
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 1.15.4
    - introduced: 2.0.0
    - fixed: 2.0.3
    - introduced: 2.1.0
    - fixed: 2.1.2
    - introduced: 2.2.0
    - fixed: 2.2.1
    - introduced: 2.3.0
    - fixed: 2.3.1
  versions:
  - 1.15.0
  - 2.1.0
  - 2.1.1
  - 2.2.0
  - 2.3.0
references:
- type: ADVISORY
  url: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8
- type: WEB
  url: https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1
- type: FIX
  url: https://github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1
- type: WEB
  url: http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html
aliases:
- CVE-2020-15204
- GHSA-q8gv-q7wr-9jf8
modified: "2021-12-09T06:34:42.248668Z"
published: "2020-09-25T19:15:00Z"