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GHSA-9q5j-jm53-v7vr — Vulnerability in lz4-sys — Advisory Details

CRITICAL

lz4-sys vulnerable to memory corruption via issue in liblz4

Published September 1, 2022Updated November 8, 2023Source: osv

Summary

lz4-sys up to v1.9.3 bundles a version of liblz4 that is vulnerable to [CVE-2021-3520](https://nvd.nist.gov/vuln/detail/CVE-2021-3520). Attackers could craft a payload that triggers an integer overflow upon decompression, causing an out-of-bounds write. The flaw has been corrected in version v1.9.4 of liblz4, which is included in lz4-sys 1.9.4.

Advisory Timeline

  • First published September 1, 2022 (1502 days ago).
  • Last revised November 8, 2023 — 432 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update lz4-sys to 1.9.4 or later
cargo update -p lz4-sys --precise 1.9.4

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

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
lz4-sys
crates.io
All versions1.9.4

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-190
    Integer OverflowMITRE
  • CWE-787
    Out-of-bounds WriteMITRE

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 GHSA-9q5j-jm53-v7vr?
lz4-sys vulnerable to memory corruption via issue in liblz4 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 GHSA-9q5j-jm53-v7vr?
GHSA-9q5j-jm53-v7vr affects lz4-sys. Use GeekWala's free vulnerability scanner to check your dependencies against GHSA-9q5j-jm53-v7vr and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

RUSTSEC-2022-0051

Related CVEs

More crates.io advisories

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