CVE-2020-36474: Vanilla/safecurl SafeCurl Before 0.9.2 Has A Vulnerability

CRITICAL
Advisory Identifier: GHSA-x2xg-6wcj-6xf9
Share
CVSS 9.8
Published
Advisory Summary

CVE-2020-36474 is a CRITICAL (CVSS 9.8) safecurl before 0.9.2 has a vulnerability (General Security Weakness) affecting Vanilla/safecurl libraries in the Packagist ecosystem. The issue involves safecurl before 0.9.2 has a dns rebinding vulnerability.. Remediation is available by upgrading affected packages to version 0.9.2.

CVE-2020-36474 at a Glance

CVE Identifier CVE-2020-36474
GHSA Identifier GHSA-x2xg-6wcj-6xf9
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Vanilla/safecurl
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-36474

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

vanilla/safecurl fixed: 0.9.2 
Upgrade vanilla/safecurl to 0.9.2
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 vanilla/safecurl

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-36474, inspect your project dependencies for Vanilla/safecurl:

inspect dependencies for vanilla/safecurl

Analyze the terminal output to locate any version of Vanilla/safecurl in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.9.2), 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 Vanilla/safecurl, 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

SafeCurl before 0.9.2 has a DNS rebinding vulnerability.

CVE-2020-36474 Affected Vanilla/safecurl Versions

1 component(s)
Fixed Versions:
0.9.2
Product / Package Ecosystem Affected Versions Fixed Version
vanilla/safecurl
 Packagist
< 0.9.2
0.9.2

References

NVD — CVE-2020-36474 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36474
Vanilla/safecurl Source Repository REPOSITORY
https://github.com/vanilla/safecurl/pull/2
Vanilla/safecurl Source Repository REPOSITORY
https://github.com/vanilla/safecurl
Vanilla/safecurl Release RELEASE
https://github.com/vanilla/safecurl/releases/tag/v0.9.2

Frequently Asked Questions

What is CVE-2020-36474?
CVE-2020-36474 is a security vulnerability in Vanilla/safecurl involving SafeCurl before 0.9.2 has a DNS rebinding vulnerability. under General Security Weakness.
Which Vanilla/safecurl versions are affected?
Affected versions include releases prior to 0.9.2 across affected packages: vanilla/safecurl.
What version fixes CVE-2020-36474?
Upgrading to 0.9.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is vanilla/safecurl affected?
Yes, vanilla/safecurl is affected in releases prior to 0.9.2. Upgrade your dependency to 0.9.2 or later.
What is the CVSS score of CVE-2020-36474?
CVE-2020-36474 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-36474?
CVE-2020-36474 is classified under General Security Weakness.
How can I check Packagist dependencies for CVE-2020-36474?
Run the dependency tree command: 'inspect dependencies for vanilla/safecurl'. 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-x2xg-6wcj-6xf9",
  "modified" : "2021-08-24T20:08:25Z",
  "published" : "2021-08-25T14:49:48Z",
  "aliases" : [ "CVE-2020-36474" ],
  "summary" : "SafeCurl before 0.9.2 has a DNS rebinding vulnerability.",
  "details" : "SafeCurl before 0.9.2 has a DNS rebinding vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "vanilla/safecurl"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.9.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-36474"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vanilla/safecurl/pull/2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vanilla/safecurl"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vanilla/safecurl/releases/tag/v0.9.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-24T20:08:25Z",
    "nvd_published_at" : "2021-08-20T15:15:00Z"
  }
}