CVE-2022-1812: Publify core Integer Overflow Vulnerability

CRITICAL
Advisory Identifier: GHSA-rc42-jghf-vr8f
Share
CVSS 9.8
CWE-190
Published
Advisory Summary

CVE-2022-1812 is a CRITICAL (CVSS 9.8) integer overflow vulnerability (CWE-190: Integer Overflow or Wraparound) affecting Publify core libraries in the RubyGems ecosystem. The issue involves integer overflow in publify_core. Remediation is available by upgrading affected packages to version 9.2.10.

CVE-2022-1812 at a Glance

CVE Identifier CVE-2022-1812
GHSA Identifier GHSA-rc42-jghf-vr8f
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-190: Integer Overflow or Wraparound
Affected Product Publify core
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-2022-1812

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

publify_core fixed: 9.2.10 
Upgrade publify_core to 9.2.10
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 publify_core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-1812, inspect your project dependencies for Publify core:

inspect dependencies for publify_core

Analyze the terminal output to locate any version of Publify core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.2.10), 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-190: Integer Overflow or Wraparound, where the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number. In Publify core, 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

Integer Overflow or Wraparound in GitHub repository publify/publify prior to 9.2.10 due to an unlimited length user name field.

CVE-2022-1812 Affected Publify core Versions

1 component(s)
Fixed Versions:
9.2.10
Product / Package Ecosystem Affected Versions Fixed Version
publify_core
gem/publify_core
RubyGems
< 9.2.10
9.2.10

References

NVD — CVE-2022-1812 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1812
Security Fix Commit FIX COMMIT
https://github.com/publify/publify/commit/29a5837c29620e33857d7a5afce01384e3f8e41a
Publify core Source Repository REPOSITORY
https://github.com/publify/publify_core
Publify core Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/publify_core/CVE-2022-1812.yml
huntr.dev/bounties/17d86a50-2... WEB
https://huntr.dev/bounties/17d86a50-265c-4ec8-9592-0bd909ddc8f3

Frequently Asked Questions

What is CVE-2022-1812?
CVE-2022-1812 is a security vulnerability in Publify core involving Integer overflow in publify_core under CWE-190: Integer Overflow or Wraparound.
Which Publify core versions are affected?
Affected versions include releases prior to 9.2.10 across affected packages: publify_core.
What version fixes CVE-2022-1812?
Upgrading to 9.2.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is publify_core affected?
Yes, publify_core is affected in releases prior to 9.2.10. Upgrade your dependency to 9.2.10 or later.
What is the CVSS score of CVE-2022-1812?
CVE-2022-1812 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-2022-1812?
CVE-2022-1812 is classified under CWE-190: Integer Overflow or Wraparound (The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.).
How can I check RubyGems dependencies for CVE-2022-1812?
Run the dependency tree command: 'inspect dependencies for publify_core'. 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-rc42-jghf-vr8f",
  "modified" : "2023-01-23T20:34:52Z",
  "published" : "2023-01-14T15:30:25Z",
  "aliases" : [ "CVE-2022-1812" ],
  "summary" : "Integer overflow in publify_core",
  "details" : "Integer Overflow or Wraparound in GitHub repository publify/publify prior to 9.2.10 due to an unlimited length user name field.",
  "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" : "publify_core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.2.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-1812"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/publify/publify/commit/29a5837c29620e33857d7a5afce01384e3f8e41a"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/publify/publify_core"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/publify_core/CVE-2022-1812.yml"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/17d86a50-265c-4ec8-9592-0bd909ddc8f3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-190" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-23T20:34:52Z",
    "nvd_published_at" : "2023-01-14T14:15:00Z"
  }
}