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CVE-2020-26269— Heap out of bounds read in filesystem glob matching in TensorFlow

Quick assessment

Affected
tensorflow tensorflow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google TensorFlow是美国谷歌（Google）公司的一套用于机器学习的端到端开源平台。 TensorFlow 2.4.0rc*存在缓冲区错误漏洞，攻击者可利用该漏洞访问特殊目录。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.70% · P51

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2020-26269

Vulnerability Information
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Vulnerability Title
Heap out of bounds read in filesystem glob matching in TensorFlow
Source: CVE Program / CVE List V5
Vulnerability Description
In TensorFlow release candidate versions 2.4.0rc*, the general implementation for matching filesystem paths to globbing pattern is vulnerable to an access out of bounds of the array holding the directories. There are multiple invariants and preconditions that are assumed by the parallel implementation of GetMatchingPaths but are not verified by the PRs introducing it (#40861 and #44310). Thus, we are completely rewriting the implementation to fully specify and validate these. This is patched in version 2.4.0. This issue only impacts master branch and the release candidates for TF version 2.4. The final release of the 2.4 release will be patched.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Google TensorFlow 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google TensorFlow是美国谷歌（Google）公司的一套用于机器学习的端到端开源平台。 TensorFlow 2.4.0rc*存在缓冲区错误漏洞，攻击者可利用该漏洞访问特殊目录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
tensorflow tensorflow .4.0rc* -

II. Public POCs for CVE-2020-26269

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III. Intelligence Information for CVE-2020-26269

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Patches & Fixes for CVE-2020-26269 (1)

Vendor Advisories for CVE-2020-26269 (1)

Same Patch Batch · tensorflow · 2020-12-10 · 6 CVEs total

CVE-2020-26271 4.4 MEDIUM Heap out of bounds access in MakeEdge in TensorFlow
CVE-2020-26270 4.4 MEDIUM CHECK-fail in LSTM with zero-length input in TensorFlow
CVE-2020-26268 4.4 MEDIUM Write to immutable memory region in TensorFlow
CVE-2020-26267 4.4 MEDIUM Lack of validation in data format attributes in TensorFlow
CVE-2020-26266 4.4 MEDIUM Uninitialized memory access in Eigen types in TensorFlow

IV. Related Vulnerabilities

Same product: tensorflow
Same vendor: tensorflow
Same weakness: CWE-125

V. Comments for CVE-2020-26269

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