CVE-2019-17383: Netaddr Netaddr Before 1.5.3 And 2.0.4 Vulnerability

CRITICAL
Advisory Identifier: GHSA-49pj-69vf-c689
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CVSS 9.8
CWE-276
Published
Advisory Summary

CVE-2019-17383 is a CRITICAL (CVSS 9.8) netaddr before 1.5.3 and 2.0.4 vulnerability (CWE-276: Incorrect Default Permissions) affecting Netaddr libraries in the RubyGems ecosystem. The issue involves netaddr before 1.5.3 and 2.0.4 has incorrect default permissions. Remediation is available by upgrading affected packages to version 2.0.4, 1.5.3.

CVE-2019-17383 at a Glance

CVE Identifier CVE-2019-17383
GHSA Identifier GHSA-49pj-69vf-c689
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-276: Incorrect Default Permissions
Affected Product Netaddr
Package Ecosystem RubyGems
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-2019-17383

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

netaddr fixed: 2.0.4 
Upgrade netaddr to 2.0.4
netaddr fixed: 1.5.3 
Upgrade netaddr to 1.5.3
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 netaddr

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-17383, inspect your project dependencies for Netaddr:

inspect dependencies for netaddr

Analyze the terminal output to locate any version of Netaddr in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.4), 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-276: Incorrect Default Permissions, where during installation, installed file permissions are set to allow anyone to modify those files. In Netaddr, 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

The netaddr gem before 1.5.3 and 2.0.4 for Ruby has misconfigured file permissions, such that a gem install may result in 0777 permissions in the target filesystem.

CVE-2019-17383 Affected Netaddr Versions

2 component(s)
Fixed Versions:
2.0.41.5.3
Product / Package Ecosystem Affected Versions Fixed Version
netaddr
gem/netaddr
RubyGems
≥ 2.0.0
< 2.0.4
2.0.4
netaddr
gem/netaddr
RubyGems
< 1.5.3
1.5.3

References

NVD — CVE-2019-17383 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-17383
Netaddr Source Repository REPOSITORY
https://github.com/dspinhirne/netaddr-rb/issues/29
Netaddr Source Repository REPOSITORY
https://github.com/dspinhirne/netaddr-rb/pull/20
Security Fix Commit FIX COMMIT
https://github.com/dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51
Security Fix Commit FIX COMMIT
https://github.com/dspinhirne/netaddr-rb/commit/c7a7de39b7e1126aef11821f98970db18582948b
Netaddr Source Repository REPOSITORY
https://github.com/dspinhirne/netaddr-rb
Netaddr Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/netaddr/CVE-2019-17383.yml
rubygems.org/gems/netaddr/versio... WEB
https://rubygems.org/gems/netaddr/versions

Frequently Asked Questions

What is CVE-2019-17383?
CVE-2019-17383 is a security vulnerability in Netaddr involving netaddr before 1.5.3 and 2.0.4 has Incorrect Default Permissions under CWE-276: Incorrect Default Permissions.
Which Netaddr versions are affected?
Affected versions include releases prior to 2.0.4, 1.5.3 across affected packages: netaddr.
What version fixes CVE-2019-17383?
Upgrading to 2.0.4, 1.5.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is netaddr affected?
Yes, netaddr is affected in releases prior to 2.0.4, 1.5.3. Upgrade your dependency to 2.0.4, 1.5.3 or later.
What is the CVSS score of CVE-2019-17383?
CVE-2019-17383 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-2019-17383?
CVE-2019-17383 is classified under CWE-276: Incorrect Default Permissions (During installation, installed file permissions are set to allow anyone to modify those files.).
How can I check RubyGems dependencies for CVE-2019-17383?
Run the dependency tree command: 'inspect dependencies for netaddr'. 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-49pj-69vf-c689",
  "modified" : "2024-10-23T17:40:33Z",
  "published" : "2019-10-14T21:43:19Z",
  "aliases" : [ "CVE-2019-17383" ],
  "summary" : "netaddr before 1.5.3 and 2.0.4 has Incorrect Default Permissions",
  "details" : "The netaddr gem before 1.5.3 and 2.0.4 for Ruby has misconfigured file permissions, such that a gem install may result in 0777 permissions in the target filesystem.",
  "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" : "RubyGems",
      "name" : "netaddr"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.0.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "netaddr"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-17383"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dspinhirne/netaddr-rb/issues/29"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dspinhirne/netaddr-rb/pull/20"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dspinhirne/netaddr-rb/commit/c7a7de39b7e1126aef11821f98970db18582948b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dspinhirne/netaddr-rb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/netaddr/CVE-2019-17383.yml"
  }, {
    "type" : "WEB",
    "url" : "https://rubygems.org/gems/netaddr/versions"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-276" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-10-14T21:39:19Z",
    "nvd_published_at" : "2019-10-09T16:15:00Z"
  }
}