CVE-2022-41343: Dompdf/dompdf Dompdf Allows Remote File Inclusion Vulnerability

HIGH
Advisory Identifier: GHSA-6x28-7h8c-chx4
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CVSS 7.5
CWE-552
Published
Advisory Summary

CVE-2022-41343 is a HIGH (CVSS 7.5) dompdf allows remote file inclusion vulnerability (CWE-552: Files or Directories Accessible to External Parties) affecting Dompdf/dompdf libraries in the Packagist ecosystem. The issue involves dompdf allows remote file inclusion because uri validation failure does not halt font registration. Remediation is available by upgrading affected packages to version 2.0.1.

CVE-2022-41343 at a Glance

CVE Identifier CVE-2022-41343
GHSA Identifier GHSA-6x28-7h8c-chx4
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-552: Files or Directories Accessible to External Parties
Affected Product Dompdf/dompdf
Package Ecosystem Packagist
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:H/I:N/A:N).

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 None (I:N)
Availability None (A:N)

How to Fix CVE-2022-41343

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

dompdf/dompdf fixed: 2.0.1 
Upgrade dompdf/dompdf to 2.0.1
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 dompdf/dompdf

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-41343, inspect your project dependencies for Dompdf/dompdf:

inspect dependencies for dompdf/dompdf

Analyze the terminal output to locate any version of Dompdf/dompdf in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.1), 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-552: Files or Directories Accessible to External Parties, where the product makes files or directories accessible to unauthorized actors, even though they should not be. In Dompdf/dompdf, 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

`registerFont` in `FontMetrics.php` in Dompdf before 2.0.1 allows remote file inclusion because a URI validation failure does not halt font registration, as demonstrated by a `@font-face` rule.

CVE-2022-41343 Affected Dompdf/dompdf Versions

1 component(s)
Fixed Versions:
2.0.1
Product / Package Ecosystem Affected Versions Fixed Version
dompdf/dompdf
 Packagist
< 2.0.1
2.0.1

References

NVD — CVE-2022-41343 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-41343
Dompdf/dompdf Source Repository REPOSITORY
https://github.com/dompdf/dompdf/issues/2994
Dompdf/dompdf Source Repository REPOSITORY
https://github.com/dompdf/dompdf/pull/2995
Security Fix Commit FIX COMMIT
https://github.com/dompdf/dompdf/commit/66431c58017d5b1bdb9f6f772b9fbbc5e3d38dc2
Dompdf/dompdf Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/dompdf/dompdf/CVE-2022-41343.yaml
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-6x28-7h8c-chx4
Dompdf/dompdf Source Repository REPOSITORY
https://github.com/dompdf/dompdf
Dompdf/dompdf Release RELEASE
https://github.com/dompdf/dompdf/releases/tag/v2.0.1
tantosec.com/blog/cve-2022-41343 WEB
https://tantosec.com/blog/cve-2022-41343

Frequently Asked Questions

What is CVE-2022-41343?
CVE-2022-41343 is a security vulnerability in Dompdf/dompdf involving Dompdf allows remote file inclusion because URI validation failure does not halt font registration under CWE-552: Files or Directories Accessible to External Parties.
Which Dompdf/dompdf versions are affected?
Affected versions include releases prior to 2.0.1 across affected packages: dompdf/dompdf.
What version fixes CVE-2022-41343?
Upgrading to 2.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is dompdf/dompdf affected?
Yes, dompdf/dompdf is affected in releases prior to 2.0.1. Upgrade your dependency to 2.0.1 or later.
What is the CVSS score of CVE-2022-41343?
CVE-2022-41343 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:H/I:N/A:N.
What CWE is associated with CVE-2022-41343?
CVE-2022-41343 is classified under CWE-552: Files or Directories Accessible to External Parties (The product makes files or directories accessible to unauthorized actors, even though they should not be.).
How can I check Packagist dependencies for CVE-2022-41343?
Run the dependency tree command: 'inspect dependencies for dompdf/dompdf'. 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-6x28-7h8c-chx4",
  "modified" : "2022-09-30T04:31:01Z",
  "published" : "2022-09-26T00:00:23Z",
  "aliases" : [ "CVE-2022-41343" ],
  "summary" : "Dompdf allows remote file inclusion because URI validation failure does not halt font registration",
  "details" : "`registerFont` in `FontMetrics.php` in Dompdf before 2.0.1 allows remote file inclusion because a URI validation failure does not halt font registration, as demonstrated by a `@font-face` rule.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "dompdf/dompdf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-41343"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dompdf/dompdf/issues/2994"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dompdf/dompdf/pull/2995"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dompdf/dompdf/commit/66431c58017d5b1bdb9f6f772b9fbbc5e3d38dc2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/dompdf/dompdf/CVE-2022-41343.yaml"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-6x28-7h8c-chx4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dompdf/dompdf"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dompdf/dompdf/releases/tag/v2.0.1"
  }, {
    "type" : "WEB",
    "url" : "https://tantosec.com/blog/cve-2022-41343"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-552" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-30T04:31:01Z",
    "nvd_published_at" : "2022-09-25T19:15:00Z"
  }
}