CVE-2018-17419: Github.com/miekg/dns Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-9jcx-pr2f-qvq5
Share
CVSS 7.5
CWE-400
Published
Advisory Summary

CVE-2018-17419 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Github.com/miekg/dns libraries in the Go ecosystem. The issue involves miekg/dns parsing error leads to nil pointer dereference and dos. Remediation is available by upgrading affected packages to version 1.0.10.

CVE-2018-17419 at a Glance

CVE Identifier CVE-2018-17419
GHSA Identifier GHSA-9jcx-pr2f-qvq5
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Github.com/miekg/dns
Package Ecosystem Go
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-2018-17419

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

github.com/miekg/dns fixed: 1.0.10 
Upgrade github.com/miekg/dns to 1.0.10
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 github.com/miekg/dns

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-17419, inspect your project dependencies for Github.com/miekg/dns:

inspect dependencies for github.com/miekg/dns

Analyze the terminal output to locate any version of Github.com/miekg/dns in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.10), 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Github.com/miekg/dns, 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 `setTA` in `scan_rr.go` in the Miek Gieben DNS library before 1.0.10 for Go. A `dns.ParseZone()` parsing error causes a segmentation violation, leading to denial of service.

CVE-2018-17419 Affected Github.com/miekg/dns Versions

1 component(s)
Fixed Versions:
1.0.10
Product / Package Ecosystem Affected Versions Fixed Version
github.com/miekg/dns
golang/github.com/miekg/dns
Go
< 1.0.10
1.0.10

References

Github.com/miekg/dns Source Repository REPOSITORY
https://github.com/miekg/dns/issues/742
NVD — CVE-2018-17419 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17419
Github.com/miekg/dns Source Repository REPOSITORY
https://github.com/miekg/dns/pull/745/commits/f71d7d9d77d439b30a5e50900df5b1f988a50e5e
Security Fix Commit FIX COMMIT
https://github.com/miekg/dns/commit/501e858f679edecd4a38a86317ce50271014a80d
Github.com/miekg/dns Source Repository REPOSITORY
https://github.com/miekg/dns
pkg.go.dev/vuln/go-2020-0028 WEB
https://pkg.go.dev/vuln/GO-2020-0028

Frequently Asked Questions

What is CVE-2018-17419?
CVE-2018-17419 is a security vulnerability in Github.com/miekg/dns involving miekg/dns parsing error leads to nil pointer dereference and DoS under CWE-400: Uncontrolled Resource Consumption.
Which Github.com/miekg/dns versions are affected?
Affected versions include releases prior to 1.0.10 across affected packages: github.com/miekg/dns.
What version fixes CVE-2018-17419?
Upgrading to 1.0.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/miekg/dns affected?
Yes, github.com/miekg/dns is affected in releases prior to 1.0.10. Upgrade your dependency to 1.0.10 or later.
What is the CVSS score of CVE-2018-17419?
CVE-2018-17419 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-2018-17419?
CVE-2018-17419 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Go dependencies for CVE-2018-17419?
Run the dependency tree command: 'inspect dependencies for github.com/miekg/dns'. 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-9jcx-pr2f-qvq5",
  "modified" : "2024-05-20T19:40:31Z",
  "published" : "2021-05-18T18:34:25Z",
  "aliases" : [ "CVE-2018-17419" ],
  "summary" : "miekg/dns parsing error leads to nil pointer dereference and DoS",
  "details" : "An issue was discovered in `setTA` in `scan_rr.go` in the Miek Gieben DNS library before 1.0.10 for Go. A `dns.ParseZone()` parsing error causes a segmentation violation, leading to denial of service.",
  "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" : "Go",
      "name" : "github.com/miekg/dns"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-17419"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/miekg/dns/issues/742"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/miekg/dns/pull/745/commits/f71d7d9d77d439b30a5e50900df5b1f988a50e5e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/miekg/dns/commit/501e858f679edecd4a38a86317ce50271014a80d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/miekg/dns"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2020-0028"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-11T00:44:23Z",
    "nvd_published_at" : null
  }
}