Medium severity · published Sep 25, 2020
CVE-2020-15204
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
5.3
CVSS
0.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LE
Leap · Opensuse
15.2 · source: NVD
TE
Tensorflow · Google
before 1.15.4; 2.0.0 before 2.0.3; 2.1.0 before 2.1.2; 2.2.0 before 2.2.1; 2.3.0 before 2.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15204
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15204
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html
Patch
https://github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1
Third Party Advisory
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1
Exploit
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8
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