CVE-2020-15207

In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds. If the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption. The issue is patched in commit 2d88f470dea2671b430884260f3626b1fe99830a, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

CVSS v3.0 9.0 CRITICAL
CVSS v2.0 6.8 MEDIUM

9.0^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1fe99830a	Patch Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q4qf-3fc6-8x34	Exploit Third Party Advisory
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:google:tensorflow:::::lite:::*
	cpe:2.3:a:google:tensorflow:::::lite:::*
	cpe:2.3:a:google:tensorflow:::::lite:::*
	cpe:2.3:a:google:tensorflow:::::lite:::*
	cpe:2.3:a:google:tensorflow:::::lite:::*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Information

Published : 2020-09-25 12:15

Updated : 2021-11-18 09:27

NVD link : CVE-2020-15207

Mitre link : CVE-2020-15207

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

google

tensorflow

opensuse

leap

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9.0 /10