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  5. CVE-2018-25023

CVE-2018-25023: Use of Uninitialized Resource in smallvec

January 6, 2022 (updated June 13, 2023)

Affected versions of this crate called 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). The flaw was corrected by avoiding the use of mem::uninitialized(), using MaybeUninit instead.

References

  • github.com/advisories/GHSA-55m5-whcv-c49c
  • github.com/servo/rust-smallvec
  • github.com/servo/rust-smallvec/commit/e64afc8c473d43e375ab42bd33db2d0d4ac4e41b
  • github.com/servo/rust-smallvec/issues/126
  • github.com/servo/rust-smallvec/pull/162
  • nvd.nist.gov/vuln/detail/CVE-2018-25023
  • raw.githubusercontent.com/rustsec/advisory-db/main/crates/smallvec/RUSTSEC-2018-0018.md
  • rustsec.org/advisories/RUSTSEC-2018-0018.html

Code Behaviors & Features

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Affected versions

All versions before 0.6.13

Fixed versions

  • 0.6.13

Solution

Upgrade to version 0.6.13 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-908: Use of Uninitialized Resource

Source file

cargo/smallvec/CVE-2018-25023.yml

Spotted a mistake? Edit the file on GitLab.

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