CVE-2020-15207 Information

Description

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 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html https://github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1fe99830a https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q4qf-3fc6-8x34

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.0