// For flags

CVE-2019-16778

Heap buffer overflow in `UnsortedSegmentSum` in TensorFlow

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

En TensorFlow versiones anteriores a 1.15, un desbordamiento de búfer de la pila puede ser producido en la función UnsortedSegmentSum cuando el argumento de la plantilla Index es int32. En este caso, los campos data_size y num_segments son truncados de int64 hasta int32 y pueden producir números negativos, resultando en el acceso a la memoria de la pila fuera de los límites. Es poco probable que sea explotable y se detectó y reparó internamente en TensorFlow versiones 1.15 y 2.0.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-09-24 CVE Reserved
  • 2019-12-16 CVE Published
  • 2023-10-20 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-681: Incorrect Conversion between Numeric Types
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Google
Search vendor "Google"
 Tensorflow
Search vendor "Google" for product "Tensorflow"
 >= 1.0.0 < 1.15.0
Search vendor "Google" for product "Tensorflow" and version " >= 1.0.0 < 1.15.0"
-
Affected