Vulnerabilities in pkg:npm/libyaml

PACKAGE
Advisory Identifier: GHSA-m75h-cghq-c8h5
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Advisory Summary

CVE-2013-6393 is a CRITICAL heap based buffer overflow vulnerability (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer) affecting Libyaml libraries in the npm ecosystem. The issue involves heap based buffer overflow in libyaml. Remediation is available by upgrading affected packages to version 0.2.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/libyaml

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/libyaml. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-m75h-cghq-c8h5 CVE-2013-6393 CRITICAL Heap Based Buffer Overflow in libyaml

CVE-2013-6393 at a Glance

CVE Identifier CVE-2013-6393
GHSA Identifier GHSA-m75h-cghq-c8h5
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Product Libyaml
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2013-6393

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

libyaml fixed: 0.2.3 
npm install libyaml@0.2.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls libyaml

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2013-6393, inspect your project dependencies using npm:

npm ls libyaml

Analyze the terminal output to locate any version of Libyaml in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.3), your application is affected.

Note: The npm ls libyaml command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer, where the product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. this may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. In Libyaml, 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

Versions 0.2.2 and earlier depend on native libyaml version 0.1.5 or earlier. As such, they are affected by a heap-based buffer overflow vulnerability that may result in a crash or arbitrary code execution when parsing YAML tags. ## Recommendation - Update to version 0.2.3 that includes a version of LibYAML that contains a fix for this issue.

CVE-2013-6393 Affected Libyaml Versions

1 component(s)
Fixed Versions:
0.2.3
Product / Package Ecosystem Affected Versions Fixed Version
libyaml
npm/libyaml
npm
< 0.2.3
0.2.3

References

NVD — CVE-2013-6393 NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-6393
bitbucket.org/xi/libyaml PACKAGE
https://bitbucket.org/xi/libyaml
bitbucket.org/xi/libyaml/commits/... WEB
https://bitbucket.org/xi/libyaml/commits/bce8b60f0b9af69fa9fab3093d0a41ba243de048
bitbucket.org/xi/libyaml/commits/... WEB
https://bitbucket.org/xi/libyaml/commits/tag/0.1.5
bugzilla.redhat.com/attachment.cgi WEB
https://bugzilla.redhat.com/attachment.cgi?id=847926&action=diff
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1033990
Libyaml Security Information SECURITY
https://puppet.com/security/cve/cve-2013-6393
support.apple.com/kb/ht6536 WEB
https://support.apple.com/kb/HT6536
Libyaml Security Information SECURITY
https://web.archive.org/web/20140302205713/http://www.securityfocus.com/bid/65258
Libyaml Security Information SECURITY
https://web.archive.org/web/20150523055002/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:060/?name=MDVSA-2015:060
www.npmjs.com/advisories/21 WEB
https://www.npmjs.com/advisories/21
advisories.mageia.org/mgasa-2014-0040.htm... WEB
http://advisories.mageia.org/MGASA-2014-0040.html
archives.neohapsis.com/archives/bugtraq/20... WEB
http://archives.neohapsis.com/archives/bugtraq/2014-04/0134.html
archives.neohapsis.com/archives/bugtraq/20... WEB
http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
MITRE CVE Database — CVE-2013-6393 MITRE
http://cve.mitre.org/cgi-bin/cvename.cgi?name=2013-6393
lists.opensuse.org/opensuse-updates/20... WEB
http://lists.opensuse.org/opensuse-updates/2014-02/msg00064.html
lists.opensuse.org/opensuse-updates/20... WEB
http://lists.opensuse.org/opensuse-updates/2014-02/msg00065.html
lists.opensuse.org/opensuse-updates/20... WEB
http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html
lists.opensuse.org/opensuse-updates/20... WEB
http://lists.opensuse.org/opensuse-updates/2016-04/msg00050.html
rhn.redhat.com/errata/rhsa-2014-03... WEB
http://rhn.redhat.com/errata/RHSA-2014-0353.html
rhn.redhat.com/errata/rhsa-2014-03... WEB
http://rhn.redhat.com/errata/RHSA-2014-0354.html
rhn.redhat.com/errata/rhsa-2014-03... WEB
http://rhn.redhat.com/errata/RHSA-2014-0355.html
Libyaml Security Information SECURITY
http://www.debian.org/security/2014/dsa-2850
Libyaml Security Information SECURITY
http://www.debian.org/security/2014/dsa-2870
www.ubuntu.com/usn/usn-2098-1 WEB
http://www.ubuntu.com/usn/USN-2098-1

Frequently Asked Questions

What is CVE-2013-6393?
CVE-2013-6393 is a security vulnerability in Libyaml involving Heap Based Buffer Overflow in libyaml under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer.
Which Libyaml versions are affected?
Affected versions include releases prior to 0.2.3 across affected packages: libyaml.
What version fixes CVE-2013-6393?
Upgrading to 0.2.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is libyaml affected?
Yes, libyaml is affected in releases prior to 0.2.3. Upgrade your dependency to 0.2.3 or later.
What CWE is associated with CVE-2013-6393?
CVE-2013-6393 is classified under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer (The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.).
How can I check npm dependencies for CVE-2013-6393?
Run the dependency tree command: 'npm ls libyaml'. 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-m75h-cghq-c8h5",
  "modified" : "2021-09-23T20:56:01Z",
  "published" : "2020-08-31T22:51:50Z",
  "aliases" : [ "CVE-2013-6393" ],
  "summary" : "Heap Based Buffer Overflow in libyaml",
  "details" : "Versions 0.2.2 and earlier depend on native libyaml version 0.1.5 or earlier. As such, they are affected by a heap-based buffer overflow vulnerability that may result in a crash or arbitrary code execution when parsing YAML tags.\n\n\n\n\n\n## Recommendation\n\n- Update to version 0.2.3 that includes a version of LibYAML that contains a fix for this issue.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "libyaml"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2013-6393"
  }, {
    "type" : "PACKAGE",
    "url" : "https://bitbucket.org/xi/libyaml"
  }, {
    "type" : "WEB",
    "url" : "https://bitbucket.org/xi/libyaml/commits/bce8b60f0b9af69fa9fab3093d0a41ba243de048"
  }, {
    "type" : "WEB",
    "url" : "https://bitbucket.org/xi/libyaml/commits/tag/0.1.5"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/attachment.cgi?id=847926&action=diff"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1033990"
  }, {
    "type" : "WEB",
    "url" : "https://puppet.com/security/cve/cve-2013-6393"
  }, {
    "type" : "WEB",
    "url" : "https://support.apple.com/kb/HT6536"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20140302205713/http://www.securityfocus.com/bid/65258"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20150523055002/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:060/?name=MDVSA-2015:060"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/21"
  }, {
    "type" : "WEB",
    "url" : "http://advisories.mageia.org/MGASA-2014-0040.html"
  }, {
    "type" : "WEB",
    "url" : "http://archives.neohapsis.com/archives/bugtraq/2014-04/0134.html"
  }, {
    "type" : "WEB",
    "url" : "http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html"
  }, {
    "type" : "WEB",
    "url" : "http://cve.mitre.org/cgi-bin/cvename.cgi?name=2013-6393"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-updates/2014-02/msg00064.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-updates/2014-02/msg00065.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-updates/2016-04/msg00050.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2014-0353.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2014-0354.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2014-0355.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.debian.org/security/2014/dsa-2850"
  }, {
    "type" : "WEB",
    "url" : "http://www.debian.org/security/2014/dsa-2870"
  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-2098-1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-119" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:08:07Z",
    "nvd_published_at" : null
  }
}