Upstream information
CVE-2021-37679 at MITRE
Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions it is possible to nest a `tf.map_fn` within another `tf.map_fn` call. However, if the input tensor is a `RaggedTensor` and there is no function signature provided, code assumes the output is a fully specified tensor and fills output buffer with uninitialized contents from the heap. The `t` and `z` outputs should be identical, however this is not the case. The last row of `t` contains data from the heap which can be used to leak other memory information. The bug lies in the conversion from a `Variant` tensor to a `RaggedTensor`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/ragged_tensor_from_variant_op.cc#L177-L190) does not check that all inner shapes match and this results in the additional dimensions. The same implementation can result in data loss, if input tensor is tweaked. We have patched the issue in GitHub commit 4e2565483d0ffcadc719bd44893fb7f609bb5f12. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
CVSS v2 Scores
| National Vulnerability Database |
Base Score | 4.6 |
Vector | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Access Vector | Local |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
CVSS v3 Scores
| National Vulnerability Database |
Base Score | 7.8 |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality Impact | High |
Integrity Impact | High |
Availability Impact | High |
CVSSv3 Version | 3.1 |
SUSE Bugzilla entry:
1189423 [NEW]
SUSE Security Advisories:
List of released packages
Product(s) | Fixed package version(s) | References |
SUSE Package Hub 15 SP3 | bazel-skylib1.0.3-source >= 1.0.3-bp153.2.1
bazel3.7 >= 3.7.2-bp153.4.1
libiomp5 >= 2.6.0-bp153.2.3.1
libiomp5-gnu-hpc >= 2.6.0-bp153.2.3.1
libiomp5-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow2 >= 2.6.0-bp153.2.3.1
libtensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_cc2 >= 2.6.0-bp153.2.3.1
libtensorflow_cc2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_cc2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_framework2 >= 2.6.0-bp153.2.3.1
libtensorflow_framework2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_framework2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2 >= 2.6.0-bp153.2.3.1
tensorflow2-devel >= 2.6.0-bp153.2.3.1
tensorflow2-doc >= 2.6.0-bp153.2.3.1
tensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
tensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2-lite >= 2.6.0-bp153.2.3.1
tensorflow2-lite-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc-doc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc-doc >= 2.6.0-bp153.2.3.1
| Patchnames: openSUSE-2022-10014 |
openSUSE Leap 15.3 | bazel-skylib1.0.3-source >= 1.0.3-bp153.2.1
bazel3.7 >= 3.7.2-bp153.4.1
libiomp5 >= 2.6.0-bp153.2.3.1
libiomp5-gnu-hpc >= 2.6.0-bp153.2.3.1
libiomp5-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow2 >= 2.6.0-bp153.2.3.1
libtensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_cc2 >= 2.6.0-bp153.2.3.1
libtensorflow_cc2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_cc2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_framework2 >= 2.6.0-bp153.2.3.1
libtensorflow_framework2-gnu-hpc >= 2.6.0-bp153.2.3.1
libtensorflow_framework2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2 >= 2.6.0-bp153.2.3.1
tensorflow2-devel >= 2.6.0-bp153.2.3.1
tensorflow2-doc >= 2.6.0-bp153.2.3.1
tensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
tensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2-lite >= 2.6.0-bp153.2.3.1
tensorflow2-lite-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-hpc-doc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc-devel >= 2.6.0-bp153.2.3.1
tensorflow2_2_6_0-gnu-openmpi2-hpc-doc >= 2.6.0-bp153.2.3.1
| Patchnames: openSUSE-2022-10014 |
openSUSE Tumbleweed | tensorflow-lite >= 2.9.1-1.1
tensorflow-lite-devel >= 2.9.1-1.1
| Patchnames: openSUSE-Tumbleweed-2024-12116 |
SUSE Timeline for this CVE
CVE page created: Mon Aug 16 09:53:32 2021
CVE page last modified: Tue Sep 3 19:20:58 2024