GHSA-qqmc-hwqp-8g2w: Lru Use After Free Vulnerability

HIGH
Share
Published
Advisory Summary

GHSA-qqmc-hwqp-8g2w is a HIGH use after free vulnerability (General Security Weakness) affecting Lru libraries in the crates.io ecosystem. The issue involves use after free in lru crate. Remediation is available by upgrading affected packages to version 0.7.1.

GHSA-qqmc-hwqp-8g2w at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-qqmc-hwqp-8g2w
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Lru
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-qqmc-hwqp-8g2w

To remediate this vulnerability, upgrade all affected Lru dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

lru fixed: 0.7.1 
Upgrade lru to 0.7.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for lru

How to Check if You Are Affected

To determine whether your application is affected by GHSA-qqmc-hwqp-8g2w, inspect your project dependencies for Lru:

inspect dependencies for lru

Analyze the terminal output to locate any version of Lru in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Lru, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Lru crate has use after free vulnerability. Lru crate has two functions for getting an iterator. Both iterators give references to key and value. Calling specific functions, like pop(), will remove and free the value, and but it's still possible to access the reference of value which is already dropped causing use after free.

GHSA-qqmc-hwqp-8g2w Affected Lru Versions

1 component(s)
Fixed Versions:
0.7.1
Product / Package Ecosystem Affected Versions Fixed Version
lru
 crates.io
< 0.7.1
0.7.1

References

Lru Source Repository REPOSITORY
https://github.com/jeromefroe/lru-rs/issues/120
Lru Source Repository REPOSITORY
https://github.com/jeromefroe/lru-rs
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2021-0130.html

Frequently Asked Questions

What is GHSA-qqmc-hwqp-8g2w?
GHSA-qqmc-hwqp-8g2w is a security vulnerability in Lru involving Use after free in lru crate under General Security Weakness.
Which Lru versions are affected?
Affected versions include releases prior to 0.7.1 across affected packages: lru.
What version fixes GHSA-qqmc-hwqp-8g2w?
Upgrading to 0.7.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is lru affected?
Yes, lru is affected in releases prior to 0.7.1. Upgrade your dependency to 0.7.1 or later.
What CWE is associated with GHSA-qqmc-hwqp-8g2w?
GHSA-qqmc-hwqp-8g2w is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-qqmc-hwqp-8g2w?
Run the dependency tree command: 'inspect dependencies for lru'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qqmc-hwqp-8g2w",
  "modified" : "2022-06-17T00:11:13Z",
  "published" : "2022-06-17T00:11:13Z",
  "aliases" : [ ],
  "summary" : "Use after free in lru crate",
  "details" : "Lru crate has use after free vulnerability.\n\nLru crate has two functions for getting an iterator. Both iterators give\nreferences to key and value. Calling specific functions, like pop(), will remove\nand free the value, and but it's still possible to access the reference of value\nwhich is already dropped causing use after free.\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "lru"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.7.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/jeromefroe/lru-rs/issues/120"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jeromefroe/lru-rs"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2021-0130.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-17T00:11:13Z",
    "nvd_published_at" : null
  }
}