Upstream information
Description
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, a crafted TFLite model can force a node to have as input a tensor backed by a `nullptr` buffer. This can be achieved by changing a buffer index in the flatbuffer serialization to convert a read-only tensor to a read-write one. The runtime assumes that these buffers are written to before a possible read, hence they are initialized with `nullptr`. However, by changing the buffer index for a tensor and implicitly converting that tensor to be a read-write one, as there is nothing in the model that writes to it, we get a null pointer dereference. The issue is patched in commit 0b5662bc, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 4.3 | 
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P | 
| Access Vector | Network | 
| Access Complexity | Medium | 
| Authentication | None | 
| Confidentiality Impact | None | 
| Integrity Impact | None | 
| Availability Impact | Partial | 
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 5.9 | 
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | 
| Attack Vector | Network | 
| Attack Complexity | High | 
| Privileges Required | None | 
| User Interaction | None | 
| Scope | Unchanged | 
| Confidentiality Impact | None | 
| Integrity Impact | None | 
| Availability Impact | High | 
| CVSSv3 Version | 3.1 | 
SUSE Security Advisories:
- openSUSE-SU-2020:1766-1, published Thu Dec 7 12:55:41 2023
List of released packages
| Product(s) | Fixed package version(s) | References | 
|---|---|---|
| openSUSE Leap 15.2 | 
 | Patchnames: openSUSE-2020-1766 | 
| openSUSE Tumbleweed | 
 | Patchnames: openSUSE-Tumbleweed-2024-12116 | 
SUSE Timeline for this CVE
CVE page created: Sat Sep 26 03:25:01 2020CVE page last modified: Mon Oct 6 19:25:54 2025
