🛡️ CVE-2018-25023 — smallvec

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-908 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

smallvec creates uninitialized value of any type

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2018-25023 is classified as CWE-908: Use of Uninitialized Resource. A resource is read before being initialised, so its contents are whatever was left there.

Affected software

CVE-2018-25023 is recorded against 1 package.

  • smallvec

Timeline and source

Published on 6 January 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
raw.githubusercontent.com (Web)
rustsec.org (Web)

CVE-2018-25023 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-908
Public Exploit ✅ No
Source OSV
Published 2022-01-06
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
smallvec — —

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