CVE-2020-7731: Github.com/russellhaering/gosaml2 Github.com/russellhaering/gosaml2 Is Vulnerable To NULL Vulnerability
HIGHCVE-2020-7731 is a HIGH (CVSS 7.5) github.com/russellhaering/gosaml2 is vulnerable to null vulnerability (CWE-476: NULL Pointer Dereference) affecting Github.com/russellhaering/gosaml2 libraries in the Go ecosystem. The issue involves github.com/russellhaering/gosaml2 is vulnerable to null pointer dereference. Remediation is available by upgrading affected packages to version 0.7.0, 1.1.1.
CVE-2020-7731 at a Glance
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).
How to Fix CVE-2020-7731
To remediate this vulnerability, upgrade all affected Github.com/russellhaering/gosaml2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/russellhaering/gosaml2 to 0.7.0Upgrade github.com/russellhaering/goxmldsig to 1.1.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/russellhaering/gosaml2How to Check if You Are Affected
To determine whether your application is affected by CVE-2020-7731, inspect your project dependencies for Github.com/russellhaering/gosaml2:
inspect dependencies for github.com/russellhaering/gosaml2Analyze the terminal output to locate any version of Github.com/russellhaering/gosaml2 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 Github.com/russellhaering/gosaml2, 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
CVE-2020-7731 Affected Github.com/russellhaering/gosaml2 Versions
2 component(s)| 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 CVE-2020-7731?
Which Github.com/russellhaering/gosaml2 versions are affected?
What version fixes CVE-2020-7731?
Is github.com/russellhaering/gosaml2 affected?
Is github.com/russellhaering/goxmldsig affected?
What is the CVSS score of CVE-2020-7731?
What CWE is associated with CVE-2020-7731?
How can I check Go dependencies for CVE-2020-7731?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-prjq-f4q3-fvfr",
"modified" : "2024-05-20T19:38:33Z",
"published" : "2022-11-15T19:05:07Z",
"aliases" : [ "CVE-2020-7731" ],
"summary" : "github.com/russellhaering/gosaml2 is vulnerable to NULL Pointer Dereference",
"details" : "### Impact\nIn versions prior to v0.7.0 it was possible for an attacker to supply an invalid assertion which would trigger a panic due to a nil-pointer dereference.\n\n### Patches\nThe issue was patched in v0.7.0, released on March 2, 2022.\n\n### Workarounds\nCallers to `gosaml2` can use `recover()` to handle panics to mitigate a potential DoS.\n\n### References\nSee issue [#59](https://github.com/russellhaering/gosaml2/issues/59) for details.",
"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" : "WEB",
"url" : "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-prjq-f4q3-fvfr"
}, {
"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" : "2022-11-15T19:05:07Z",
"nvd_published_at" : null
}
}