CVE-2018-1000075: Rubygems update RubyGems Infinite Loop Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-74pv-v9gh-h25p
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CVSS 7.5
CWE-835
Published
Advisory Summary

CVE-2018-1000075 is a HIGH (CVSS 7.5) rubygems infinite loop vulnerability vulnerability (CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')) affecting Rubygems update libraries in the RubyGems ecosystem. The issue involves rubygems infinite loop vulnerability. Remediation is available by upgrading affected packages to version 2.7.6, 9.1.16.0.

CVE-2018-1000075 at a Glance

CVE Identifier CVE-2018-1000075
GHSA Identifier GHSA-74pv-v9gh-h25p
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Affected Product Rubygems update
Package Ecosystem RubyGems
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:3.0/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-2018-1000075

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

rubygems-update fixed: 2.7.6 
Upgrade rubygems-update to 2.7.6
org.jruby:jruby-stdlib fixed: 9.1.16.0 
<dependency>
    <groupId>org.jruby</groupId>
    <artifactId>jruby-stdlib</artifactId>
    <version>9.1.16.0</version>
</dependency>
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 rubygems-update

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-1000075, inspect your project dependencies for Rubygems update:

inspect dependencies for rubygems-update

Analyze the terminal output to locate any version of Rubygems update in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.7.6), 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-835: Loop with Unreachable Exit Condition ('Infinite Loop'), where the product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. In Rubygems update, 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

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a infinite loop caused by negative size vulnerability in ruby gem package tar header that can result in a negative size could cause an infinite loop.. This vulnerability appears to have been fixed in 2.7.6.

CVE-2018-1000075 Affected Rubygems update Versions

2 component(s)
Fixed Versions:
2.7.69.1.16.0
Product / Package Ecosystem Affected Versions Fixed Version
rubygems-update
gem/rubygems-update
RubyGems
< 2.7.6
2.7.6
org.jruby:jruby-stdlib
maven/org.jruby/jruby-stdlib
Maven
< 9.1.16.0
9.1.16.0

References

NVD — CVE-2018-1000075 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000075
Security Fix Commit FIX COMMIT
https://github.com/jruby/jruby/commit/0b06b48ab4432237ce5fc1bef47f2c6bcf7843f7
Security Fix Commit FIX COMMIT
https://github.com/rubygems/rubygems/commit/5971b486d4dbb2bad5d3445b3801c456eb0ce183
Security Fix Commit FIX COMMIT
https://github.com/rubygems/rubygems/commit/92e98bf8f810bd812f919120d4832df51bc25d83
Rubygems update Security Information SECURITY
https://www.debian.org/security/2018/dsa-4259
Rubygems update Security Information SECURITY
https://www.debian.org/security/2018/dsa-4219
usn.ubuntu.com/3621-1 WEB
https://usn.ubuntu.com/3621-1
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/05/msg00028.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html
access.redhat.com/errata/rhsa-2020:06... WEB
https://access.redhat.com/errata/RHSA-2020:0663
access.redhat.com/errata/rhsa-2020:05... WEB
https://access.redhat.com/errata/RHSA-2020:0591
access.redhat.com/errata/rhsa-2020:05... WEB
https://access.redhat.com/errata/RHSA-2020:0542
access.redhat.com/errata/rhsa-2019:20... WEB
https://access.redhat.com/errata/RHSA-2019:2028
access.redhat.com/errata/rhsa-2018:37... WEB
https://access.redhat.com/errata/RHSA-2018:3731
access.redhat.com/errata/rhsa-2018:37... WEB
https://access.redhat.com/errata/RHSA-2018:3730
access.redhat.com/errata/rhsa-2018:37... WEB
https://access.redhat.com/errata/RHSA-2018:3729
blog.rubygems.org/2018/02/15/2.7.6-re... WEB
http://blog.rubygems.org/2018/02/15/2.7.6-released.html
Rubygems update Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html

Frequently Asked Questions

What is CVE-2018-1000075?
CVE-2018-1000075 is a security vulnerability in Rubygems update involving RubyGems Infinite Loop vulnerability under CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop').
Which Rubygems update versions are affected?
Affected versions include releases prior to 2.7.6, 9.1.16.0 across affected packages: rubygems-update, org.jruby:jruby-stdlib.
What version fixes CVE-2018-1000075?
Upgrading to 2.7.6, 9.1.16.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rubygems-update affected?
Yes, rubygems-update is affected in releases prior to 2.7.6. Upgrade your dependency to 2.7.6 or later.
Is jruby-stdlib affected?
Yes, org.jruby:jruby-stdlib is affected in releases prior to 9.1.16.0. Upgrade your dependency to 9.1.16.0 or later.
What is the CVSS score of CVE-2018-1000075?
CVE-2018-1000075 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2018-1000075?
CVE-2018-1000075 is classified under CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') (The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.).
How can I check RubyGems dependencies for CVE-2018-1000075?
Run the dependency tree command: 'inspect dependencies for rubygems-update'. 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-74pv-v9gh-h25p",
  "modified" : "2023-03-10T00:43:45Z",
  "published" : "2022-05-13T01:48:31Z",
  "aliases" : [ "CVE-2018-1000075" ],
  "summary" : "RubyGems Infinite Loop vulnerability",
  "details" : "RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a infinite loop caused by negative size vulnerability in ruby gem package tar header that can result in a negative size could cause an infinite loop.. This vulnerability appears to have been fixed in 2.7.6.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "rubygems-update"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.7.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jruby:jruby-stdlib"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.1.16.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1000075"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jruby/jruby/commit/0b06b48ab4432237ce5fc1bef47f2c6bcf7843f7"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubygems/rubygems/commit/5971b486d4dbb2bad5d3445b3801c456eb0ce183"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubygems/rubygems/commit/92e98bf8f810bd812f919120d4832df51bc25d83"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2018/dsa-4259"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2018/dsa-4219"
  }, {
    "type" : "WEB",
    "url" : "https://usn.ubuntu.com/3621-1"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/05/msg00028.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0663"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0591"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0542"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:2028"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3731"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3730"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3729"
  }, {
    "type" : "WEB",
    "url" : "http://blog.rubygems.org/2018/02/15/2.7.6-released.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-835" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-03-10T00:43:45Z",
    "nvd_published_at" : "2018-03-13T15:29:00Z"
  }
}