Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | < 1.15.4 | |
| Opensuse | Leap | 15.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlMailing ListThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fecPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8ExploitThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlMailing ListThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fecPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8ExploitThird Party Advisory
FAQ
What is CVE-2020-15204?
CVE-2020-15204 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...
How severe is CVE-2020-15204?
CVE-2020-15204 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15204?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow, Opensuse Leap.