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Memory Corruption Affecting thread_local package, versions <1.1.4

0.0
high

Snyk CVSS

    Attack Complexity Low

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  • Snyk ID SNYK-RUST-THREADLOCAL-2359987
  • published 25 Jan 2022
  • disclosed 23 Jan 2022
  • credit Unknown
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Introduced: 23 Jan 2022

CVE NOT AVAILABLE CWE-119 Open this link in a new tab

How to fix?

Upgrade thread_local to version 1.1.4 or higher.

Overview

thread_local is a library which allow a separate copy of an object to be used for each thread. This allows for per-object thread-local storage, unlike the standard library's thread_local! macro which only allows static thread-local storage.

Affected versions of this package are vulnerable to Memory Corruption via {Iter, IterMut}::next which uses a weaker memory ordering when loading values than what was required, exposing a potential data race when iterating over ThreadLocal's values.