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CVE-2019-16778 Details

Description

In TensorFlow before 1.15, a heap buffer overflow in UnsortedSegmentSum can be produced when the Index template argument is int32. In this case data_size and num_segments fields are truncated from int64 to int32 and can produce negative numbers, resulting in accessing out of bounds heap memory. This is unlikely to be exploitable and was detected and fixed internally in TensorFlow 1.15 and 2.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:2.6 LOWVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/security/advisory/tfsa-2019-002.md	CVE	Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/db4f9717c41bccc3ce10099ab61996b246099892	CVE	Patch
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-844w-j86r-4x2j	CVE	PatchThird Party Advisory
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/security/advisory/tfsa-2019-002.md	[email protected]	Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/db4f9717c41bccc3ce10099ab61996b246099892	[email protected]	Patch
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-844w-j86r-4x2j	[email protected]	PatchThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-681	Incorrect Conversion between Numeric Types	[email protected]
CWE-122	Heap-based Buffer Overflow	[email protected]

Affected Products

Product	Versions
google tensorflow	>= 1.0.0, < 1.15.0
CPE cpe:2.3:a:google:tensorflow:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 29, 2021	Reanalysis	[email protected]
Dec 19, 2019	Initial Analysis	[email protected]