CVE-2019-6338: Drupal/drupal Drupal Core Third-party PEAR Archive_Tar Vulnerability

HIGH
Advisory Identifier: GHSA-6rmq-x2hv-vxpp
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CVSS 8.0
CWE-502
Published
Advisory Summary

CVE-2019-6338 is a HIGH (CVSS 8.0) drupal core third-party pear archive_tar vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Drupal/drupal libraries in the Packagist ecosystem. The issue involves drupal core third-party pear archive_tar library is vulnerable to deserialization of untrusted data. Remediation is available by upgrading affected packages to version 7.62.0, 8.5.9, 8.6.6.

CVE-2019-6338 at a Glance

CVE Identifier CVE-2019-6338
GHSA Identifier GHSA-6rmq-x2hv-vxpp
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Drupal/drupal
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2019-6338

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

drupal/drupal fixed: 7.62.0 
Upgrade drupal/drupal to 7.62.0
drupal/drupal fixed: 8.5.9 
Upgrade drupal/drupal to 8.5.9
drupal/drupal fixed: 8.6.6 
Upgrade drupal/drupal to 8.6.6
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 drupal/drupal

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-6338, inspect your project dependencies for Drupal/drupal:

inspect dependencies for drupal/drupal

Analyze the terminal output to locate any version of Drupal/drupal in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.62.0), 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-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Drupal/drupal, 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 Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; Drupal core uses the third-party PEAR Archive_Tar library. This library has released a security update which impacts some Drupal configurations. Refer to CVE-2018-1000888 for details

CVE-2019-6338 Affected Drupal/drupal Versions

3 component(s)
Fixed Versions:
7.62.08.5.98.6.6
Product / Package Ecosystem Affected Versions Fixed Version
drupal/drupal
 Packagist
≥ 7.0.0
< 7.62.0
7.62.0
drupal/drupal
 Packagist
≥ 8.0.0
< 8.5.9
8.5.9
drupal/drupal
 Packagist
≥ 8.6.0
< 8.6.6
8.6.6

References

NVD — CVE-2019-6338 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-6338
Drupal/drupal Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-6338.yaml
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/02/msg00032.html
Drupal/drupal Security Information SECURITY
https://www.debian.org/security/2019/dsa-4370
www.drupal.org/sa-core-2019-001 WEB
https://www.drupal.org/sa-core-2019-001
Drupal/drupal Security Information SECURITY
http://www.securityfocus.com/bid/106706

Frequently Asked Questions

What is CVE-2019-6338?
CVE-2019-6338 is a security vulnerability in Drupal/drupal involving Drupal core third-party PEAR Archive_Tar library is vulnerable to Deserialization of Untrusted Data under CWE-502: Deserialization of Untrusted Data.
Which Drupal/drupal versions are affected?
Affected versions include releases prior to 7.62.0, 8.5.9, 8.6.6 across affected packages: drupal/drupal.
What version fixes CVE-2019-6338?
Upgrading to 7.62.0, 8.5.9, 8.6.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/drupal affected?
Yes, drupal/drupal is affected in releases prior to 7.62.0, 8.5.9, 8.6.6. Upgrade your dependency to 7.62.0, 8.5.9, 8.6.6 or later.
What is the CVSS score of CVE-2019-6338?
CVE-2019-6338 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-6338?
CVE-2019-6338 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Packagist dependencies for CVE-2019-6338?
Run the dependency tree command: 'inspect dependencies for drupal/drupal'. 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-6rmq-x2hv-vxpp",
  "modified" : "2024-02-05T15:41:44Z",
  "published" : "2019-12-02T18:11:25Z",
  "aliases" : [ "CVE-2019-6338" ],
  "summary" : "Drupal core third-party PEAR Archive_Tar library is vulnerable to Deserialization of Untrusted Data",
  "details" : "In Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; Drupal core uses the third-party PEAR Archive_Tar library. This library has released a security update which impacts some Drupal configurations. Refer to CVE-2018-1000888 for details",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.62.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.5.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.6.0"
      }, {
        "fixed" : "8.6.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-6338"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-6338.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/02/msg00032.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4370"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-core-2019-001"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/106706"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-12-02T00:34:49Z",
    "nvd_published_at" : "2019-01-22T14:29:00Z"
  }
}