In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of `dlpack.to_dlpack` can be made to use uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python object instead of a tensor. The uninitialized memory address is due to a `reinterpret_cast` Since the `PyObject` is a Python object, not a TensorFlow Tensor, the cast to `EagerTensor` fails. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of `dlpack.to_dlpack` can be made to use
    uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code
    assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python
    object instead of a tensor. The uninitialized memory address is due to a `reinterpret_cast` Since the
    `PyObject` is a Python object, not a TensorFlow Tensor, the cast to `EagerTensor` fails. The issue is
    patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1,
    or 2.3.1. (CVE-2020-15193)

This update for tensorflow2 fixes the following issues :

  - updated to 2.1.2 with following fixes (boo#1177022) :

  - Fixes an undefined behavior causing a segfault in     tf.raw_ops.Switch (CVE-2020-15190)

  - Fixes three vulnerabilities in conversion to DLPack     format (CVE-2020-15191, CVE-2020-15192, CVE-2020-15193)

  - Fixes two vulnerabilities in SparseFillEmptyRowsGrad     (CVE-2020-15194, CVE-2020-15195)

  - Fixes an integer truncation vulnerability in code using     the work sharder API (CVE-2020-15202)

  - Fixes a format string vulnerability in     tf.strings.as_string (CVE-2020-15203)

  - Fixes segfault raised by calling session-only ops in     eager mode (CVE-2020-15204)

  - Fixes data leak and potential ASLR violation from     tf.raw_ops.StringNGrams (CVE-2020-15205)

  - Fixes segfaults caused by incomplete SavedModel     validation (CVE-2020-15206)

  - Fixes a data corruption due to a bug in negative     indexing support in TFLite (CVE-2020-15207)

  - Fixes a data corruption due to dimension mismatch in     TFLite (CVE-2020-15208)

  - Fixes several vulnerabilities in TFLite saved model     format (CVE-2020-15209, CVE-2020-15210, CVE-2020-15211)

ID	Name	Product	Family	Type	Severity
418782	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-rjjg-hgv6-h69v)	Tenable Cloud Security	SCA Checks	Local	high
418782	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-rjjg-hgv6-h69v)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
142135	openSUSE Security Update : tensorflow2 (openSUSE-2020-1766)	Nessus	SuSE Local Security Checks	Local	critical

Detections

Analytics

CVE-2020-15193

high

Tenable Plugins

high

high

critical