CVE-2021-27358: Github.com/grafana/grafana Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-h5rh-w6vm-9ghc
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CVSS 8.2
CWE-400 CWE-306
Published
Advisory Summary

CVE-2021-27358 is a MODERATE (CVSS 8.2) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Github.com/grafana/grafana libraries in the Go ecosystem. The issue involves denial of service in grafana. Remediation is available by upgrading affected packages to version 7.4.2.

CVE-2021-27358 at a Glance

CVE Identifier CVE-2021-27358
GHSA Identifier GHSA-h5rh-w6vm-9ghc
Severity MODERATE
CVSS v3.1 Base Score 8.2
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Github.com/grafana/grafana
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.2

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:L/A:H/E:U/RL:O/RC:R).

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 Low (I:L)
Availability High (A:H)

How to Fix CVE-2021-27358

To remediate this vulnerability, upgrade all affected Github.com/grafana/grafana 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/grafana/grafana fixed: 7.4.2 
Upgrade github.com/grafana/grafana to 7.4.2
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/grafana/grafana

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-27358, inspect your project dependencies for Github.com/grafana/grafana:

inspect dependencies for github.com/grafana/grafana

Analyze the terminal output to locate any version of Github.com/grafana/grafana in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.4.2), 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Github.com/grafana/grafana, 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

The snapshot feature in Grafana before 7.4.2 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set. ### Specific Go Packages Affected github.com/grafana/grafana/pkg/middleware

CVE-2021-27358 Affected Github.com/grafana/grafana Versions

1 component(s)
Fixed Versions:
7.4.2
Product / Package Ecosystem Affected Versions Fixed Version
github.com/grafana/grafana
golang/github.com/grafana/grafana
Go
≥ 6.7.3
< 7.4.2
7.4.2

References

NVD — CVE-2021-27358 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27358
Github.com/grafana/grafana Source Repository REPOSITORY
https://github.com/grafana/grafana/pull/31263
Github.com/grafana/grafana Source Repository REPOSITORY
https://github.com/grafana/grafana/blob/master/CHANGELOG.md
Github.com/grafana/grafana Source Repository REPOSITORY
https://github.com/grafana/grafana/blob/master/CHANGELOG.md#742-2021-02-17
grafana.com/docs/grafana/latest... WEB
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-2
Github.com/grafana/grafana Security Information SECURITY
https://security.netapp.com/advisory/ntap-20210513-0007

Frequently Asked Questions

What is CVE-2021-27358?
CVE-2021-27358 is a security vulnerability in Github.com/grafana/grafana involving Denial of service in Grafana under CWE-400: Uncontrolled Resource Consumption.
Which Github.com/grafana/grafana versions are affected?
Affected versions include releases prior to 7.4.2 across affected packages: github.com/grafana/grafana.
What version fixes CVE-2021-27358?
Upgrading to 7.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/grafana/grafana affected?
Yes, github.com/grafana/grafana is affected in releases prior to 7.4.2. Upgrade your dependency to 7.4.2 or later.
What is the CVSS score of CVE-2021-27358?
CVE-2021-27358 has a CVSS v3.1 base score of 8.2 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:R.
What CWE is associated with CVE-2021-27358?
CVE-2021-27358 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Go dependencies for CVE-2021-27358?
Run the dependency tree command: 'inspect dependencies for github.com/grafana/grafana'. 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-h5rh-w6vm-9ghc",
  "modified" : "2023-10-02T13:18:04Z",
  "published" : "2022-02-15T01:57:18Z",
  "aliases" : [ "CVE-2021-27358" ],
  "summary" : "Denial of service in Grafana",
  "details" : "The snapshot feature in Grafana before 7.4.2 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set.\n### Specific Go Packages Affected\ngithub.com/grafana/grafana/pkg/middleware",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:R"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/grafana/grafana"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.7.3"
      }, {
        "fixed" : "7.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-27358"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grafana/grafana/pull/31263"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grafana/grafana/blob/master/CHANGELOG.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grafana/grafana/blob/master/CHANGELOG.md#742-2021-02-17"
  }, {
    "type" : "WEB",
    "url" : "https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-2"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20210513-0007"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-306", "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-14T17:47:34Z",
    "nvd_published_at" : "2021-03-18T20:15:00Z"
  }
}