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CVE-2021-45705 — Pointer dereference in nanorand — CVE Details

CRITICAL

Pointer dereference in nanorand

Published January 6, 2022Updated November 8, 2023Source: osv

Summary

An issue was discovered in the nanorand crate before 0.6.1 for Rust. There can be multiple mutable references to the same object because the TlsWyRand Deref implementation dereferences a raw pointer.

Advisory Timeline

  • First published January 6, 2022 (1740 days ago).
  • Last revised November 8, 2023 — 670 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update nanorand to 0.6.1 or later
cargo update -p nanorand --precise 0.6.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
nanorand
crates.io
All versions0.6.1

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2021-45705?
Pointer dereference in nanorand This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-45705?
CVE-2021-45705 affects nanorand. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-45705 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-r57r-j98g-587f
GHSA-p6gj-gpc8-f8xw
RUSTSEC-2021-0114

Related CVEs

More crates.io advisories

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