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Access of Uninitialized Pointer Affecting smallvec package, versions <1.0.0

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.1% (40th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-RUST-SMALLVEC-2326705
  • published 27 Dec 2021
  • disclosed 27 Dec 2021
  • credit Unknown
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Introduced: 27 Dec 2021

CVE-2018-25023 Open this link in a new tab
CWE-824 Open this link in a new tab

How to fix?

Upgrade smallvec to version 1.0.0 or higher.

Overview

smallvec is a "Small vector" optimization for Rust: store up to a small number of items on the stack.

Affected versions of this package are vulnerable to Access of Uninitialized Pointer. Affected versions call mem::uninitialized() to create values of a user-supplied type T. This is unsound e.g. if T is a reference type (which must be non-null and thus may not remain uninitialized).