GHSA-gq5r-cc4w-g8xf: Duplicate Advisory Gosaml2 Is Vulnerable To NULL Vulnerability

HIGH
CVSS 7.5
CWE-476
Published
Advisory Summary

GHSA-gq5r-cc4w-g8xf is a HIGH (CVSS 7.5) gosaml2 is vulnerable to null vulnerability (CWE-476: NULL Pointer Dereference) affecting Duplicate Advisory libraries in the Go ecosystem. The issue involves gosaml2 is vulnerable to null pointer dereference from malformed xml signatures. Remediation is available by upgrading affected packages to version 0.7.0, 1.1.1.

GHSA-gq5r-cc4w-g8xf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-gq5r-cc4w-g8xf
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Duplicate Advisory
Package Ecosystem Go
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: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 GHSA-gq5r-cc4w-g8xf

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

github.com/russellhaering/gosaml2 fixed: 0.7.0
Upgrade github.com/russellhaering/gosaml2 to 0.7.0
github.com/russellhaering/goxmldsig fixed: 1.1.1
Upgrade github.com/russellhaering/goxmldsig to 1.1.1
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 github.com/russellhaering/gosaml2

How to Check if You Are Affected

To determine whether your application is affected by GHSA-gq5r-cc4w-g8xf, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for github.com/russellhaering/gosaml2

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.0), 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-prjq-f4q3-fvfr. This link is maintained to preserve external references. ## Original Description This affects all versions less than 0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on null pointer dereference caused by sending malformed XML signatures.

GHSA-gq5r-cc4w-g8xf Affected Duplicate Advisory Versions

2 component(s)
Fixed Versions:
0.7.01.1.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/russellhaering/gosaml2
Go
< 0.7.0
0.7.0
github.com/russellhaering/goxmldsig
Go
< 1.1.1
1.1.1

References

Frequently Asked Questions

What is GHSA-gq5r-cc4w-g8xf?
GHSA-gq5r-cc4w-g8xf is a security vulnerability in Duplicate Advisory involving gosaml2 is vulnerable to NULL Pointer Dereference from malformed XML signatures under CWE-476: NULL Pointer Dereference.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 0.7.0, 1.1.1 across affected packages: github.com/russellhaering/gosaml2, github.com/russellhaering/goxmldsig.
What version fixes GHSA-gq5r-cc4w-g8xf?
Upgrading to 0.7.0, 1.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/russellhaering/gosaml2 affected?
Yes, github.com/russellhaering/gosaml2 is affected in releases prior to 0.7.0. Upgrade your dependency to 0.7.0 or later.
Is github.com/russellhaering/goxmldsig affected?
Yes, github.com/russellhaering/goxmldsig is affected in releases prior to 1.1.1. Upgrade your dependency to 1.1.1 or later.
What is the CVSS score of GHSA-gq5r-cc4w-g8xf?
GHSA-gq5r-cc4w-g8xf 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:N/I:N/A:H.
What CWE is associated with GHSA-gq5r-cc4w-g8xf?
GHSA-gq5r-cc4w-g8xf is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Go dependencies for GHSA-gq5r-cc4w-g8xf?
Run the dependency tree command: 'inspect dependencies for github.com/russellhaering/gosaml2'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gq5r-cc4w-g8xf",
  "modified" : "2024-05-20T20:18:56Z",
  "published" : "2021-06-23T17:25:08Z",
  "withdrawn" : "2024-05-20T20:18:56Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: gosaml2 is vulnerable to NULL Pointer Dereference from malformed XML signatures",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-prjq-f4q3-fvfr. This link is maintained to preserve external references.\n\n## Original Description\nThis affects all versions less than 0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on null pointer dereference caused by sending malformed XML signatures.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/russellhaering/gosaml2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.7.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/russellhaering/goxmldsig"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7731"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/russellhaering/gosaml2/issues/59"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/russellhaering/goxmldsig/issues/48"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/russellhaering/gosaml2/pull/90"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/russellhaering/gosaml2/commit/66e3b7affd622b8b24ea1e18845f045e46b23424"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/russellhaering/gosaml2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/russellhaering/gosaml2/releases/tag/v0.7.0"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-20T21:39:22Z",
    "nvd_published_at" : "2021-04-30T16:15:00Z"
  }
}