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.

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

  - 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. (CVE-2020-15209)

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	Severity
418133	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-qh32-6jjc-qprm)	Tenable Cloud Security	SCA Checks	high
418133	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-qh32-6jjc-qprm)	Tenable Self-Hosted Container Security	SCA Checks	high
142135	openSUSE Security Update : tensorflow2 (openSUSE-2020-1766)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2020-15209

high

Tenable Plugins

high

high

critical