CVE-2021-29930: Arenavec Out Of Bounds Write Vulnerability

HIGH
Advisory Identifier: GHSA-327x-39hh-65wf
Share
CVSS 7.5
CWE-787
Published
Advisory Summary

CVE-2021-29930 is a HIGH (CVSS 7.5) out of bounds write vulnerability (CWE-787: Out-of-bounds Write) affecting Arenavec libraries in the crates.io ecosystem. The issue involves out of bounds write in arenavec. Remediation is available in the latest vendor maintenance releases.

CVE-2021-29930 at a Glance

CVE Identifier CVE-2021-29930
GHSA Identifier GHSA-327x-39hh-65wf
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-787: Out-of-bounds Write
Affected Product Arenavec
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2021-29930

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

arenavec fixed: Latest secure release 
Upgrade arenavec to Latest secure release
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 arenavec

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-29930, inspect your project dependencies for Arenavec:

inspect dependencies for arenavec

Analyze the terminal output to locate any version of Arenavec in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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 CWE-787: Out-of-bounds Write, where the product writes data past the end, or before the beginning, of the intended buffer. In Arenavec, 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

An issue was discovered in the arenavec crate through 0.1.1. A drop of uninitialized memory can sometimes occur upon a panic in T::default()

CVE-2021-29930 Affected Arenavec Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
arenavec
 crates.io
≤ 0.1.1

References

NVD — CVE-2021-29930 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29930
Arenavec Source Repository REPOSITORY
https://github.com/ibabushkin/arenavec/issues/1
Arenavec Source Repository REPOSITORY
https://github.com/ibabushkin/arenavec
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2021-0040.html

Frequently Asked Questions

What is CVE-2021-29930?
CVE-2021-29930 is a security vulnerability in Arenavec involving Out of bounds write in arenavec under CWE-787: Out-of-bounds Write.
Which Arenavec versions are affected?
Affected versions include releases prior to current release patches across affected packages: arenavec.
What version fixes CVE-2021-29930?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is arenavec affected?
Yes, arenavec is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2021-29930?
CVE-2021-29930 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2021-29930?
CVE-2021-29930 is classified under CWE-787: Out-of-bounds Write (The product writes data past the end, or before the beginning, of the intended buffer.).
How can I check crates.io dependencies for CVE-2021-29930?
Run the dependency tree command: 'inspect dependencies for arenavec'. 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-327x-39hh-65wf",
  "modified" : "2023-06-13T16:45:04Z",
  "published" : "2021-08-25T20:55:09Z",
  "aliases" : [ "CVE-2021-29930" ],
  "summary" : "Out of bounds write in arenavec",
  "details" : "An issue was discovered in the arenavec crate through 0.1.1. A drop of uninitialized memory can sometimes occur upon a panic in T::default()",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "arenavec"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-29930"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ibabushkin/arenavec/issues/1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ibabushkin/arenavec"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2021-0040.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-19T17:04:41Z",
    "nvd_published_at" : null
  }
}