CVE-2020-36211: Gfwx Data Races Vulnerability

HIGH
Advisory Identifier: GHSA-xp6v-qx65-4pp7
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CVSS 7.0
CWE-662 CWE-787
Published
Advisory Summary

CVE-2020-36211 is a HIGH (CVSS 7.0) data races vulnerability (CWE-662: Improper Synchronization) affecting Gfwx libraries in the crates.io ecosystem. The issue involves data races in gfwx. Remediation is available by upgrading affected packages to version 0.3.0.

CVE-2020-36211 at a Glance

CVE Identifier CVE-2020-36211
GHSA Identifier GHSA-xp6v-qx65-4pp7
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification CWE-662: Improper Synchronization
Affected Product Gfwx
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 7.0

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

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

How to Fix CVE-2020-36211

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

gfwx fixed: 0.3.0 
Upgrade gfwx to 0.3.0
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 gfwx

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-36211, inspect your project dependencies for Gfwx:

inspect dependencies for gfwx

Analyze the terminal output to locate any version of Gfwx in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.3.0), 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-662: Improper Synchronization, where the product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes. In Gfwx, 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

In the affected versions of this crate, ImageChunkMut<'_, T> unconditionally implements Send and Sync, allowing to create data races. This can result in a memory corruption or undefined behavior when non thread-safe types are moved and referenced across thread boundaries. The flaw was corrected in commit e7fb2f5 by adding T: Send bound to the Send impl and adding T: Sync bound to the Sync impl.

CVE-2020-36211 Affected Gfwx Versions

1 component(s)
Fixed Versions:
0.3.0
Product / Package Ecosystem Affected Versions Fixed Version
gfwx
 crates.io
< 0.3.0
0.3.0

References

NVD — CVE-2020-36211 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36211
Gfwx Source Repository REPOSITORY
https://github.com/Devolutions/gfwx-rs/issues/7
Gfwx Source Repository REPOSITORY
https://github.com/Devolutions/gfwx-rs
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2020-0104.html

Frequently Asked Questions

What is CVE-2020-36211?
CVE-2020-36211 is a security vulnerability in Gfwx involving Data races in gfwx under CWE-662: Improper Synchronization.
Which Gfwx versions are affected?
Affected versions include releases prior to 0.3.0 across affected packages: gfwx.
What version fixes CVE-2020-36211?
Upgrading to 0.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gfwx affected?
Yes, gfwx is affected in releases prior to 0.3.0. Upgrade your dependency to 0.3.0 or later.
What is the CVSS score of CVE-2020-36211?
CVE-2020-36211 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-36211?
CVE-2020-36211 is classified under CWE-662: Improper Synchronization (The product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.).
How can I check crates.io dependencies for CVE-2020-36211?
Run the dependency tree command: 'inspect dependencies for gfwx'. 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-xp6v-qx65-4pp7",
  "modified" : "2023-06-13T18:10:24Z",
  "published" : "2021-08-25T20:50:39Z",
  "aliases" : [ "CVE-2020-36211" ],
  "summary" : "Data races in gfwx",
  "details" : "In the affected versions of this crate, ImageChunkMut<'_, T> unconditionally implements Send and Sync, allowing to create data races.\n\nThis can result in a memory corruption or undefined behavior when non thread-safe types are moved and referenced across thread boundaries.\n\nThe flaw was corrected in commit e7fb2f5 by adding T: Send bound to the Send impl and adding T: Sync bound to the Sync impl.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "gfwx"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-36211"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Devolutions/gfwx-rs/issues/7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Devolutions/gfwx-rs"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2020-0104.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-662", "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-19T18:53:42Z",
    "nvd_published_at" : null
  }
}