Vulnerabilities in pkg:golang/ktbs.dev/teler

PACKAGE
Advisory Identifier: GHSA-jhj6-5mh6-4pvf
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Advisory Summary

CVE-2020-26213 is a MODERATE (CVSS 5.9) denial-of-service within docker container vulnerability (CWE-476: NULL Pointer Dereference) affecting Ktbs.dev/teler libraries in the Go ecosystem. The issue involves denial-of-service within docker container. Remediation is available by upgrading affected packages to version 0.0.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/ktbs.dev/teler

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/ktbs.dev/teler. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-jhj6-5mh6-4pvf CVE-2020-26213 MODERATE Denial-of-Service within Docker container

CVE-2020-26213 at a Glance

CVE Identifier CVE-2020-26213
GHSA Identifier GHSA-jhj6-5mh6-4pvf
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Ktbs.dev/teler
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2020-26213

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

ktbs.dev/teler fixed: 0.0.1 
Upgrade ktbs.dev/teler to 0.0.1
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 ktbs.dev/teler

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-26213, inspect your project dependencies for Ktbs.dev/teler:

inspect dependencies for ktbs.dev/teler

Analyze the terminal output to locate any version of Ktbs.dev/teler in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.1), 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 Ktbs.dev/teler, 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

### Impact If you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. ### Specific Go Packages Affected ktbs.dev/teler/pkg/errors ### Patches Upgrade to the >= 0.0.1 version. ### Workarounds N/A ### References - https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e ### For more information If you have any questions or comments about this advisory: * Open an issue in [Issues Section](https://github.com/kitabisa/teler/issues) * Email us at [infosec@kitabisa.com](mailto:infosec@kitabisa.com)

CVE-2020-26213 Affected Ktbs.dev/teler Versions

1 component(s)
Fixed Versions:
0.0.1
Product / Package Ecosystem Affected Versions Fixed Version
ktbs.dev/teler
golang/ktbs.dev/teler
Go
< 0.0.1
0.0.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/kitabisa/teler/security/advisories/GHSA-jhj6-5mh6-4pvf
NVD — CVE-2020-26213 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26213
Security Fix Commit FIX COMMIT
https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e
Ktbs.dev/teler Source Repository REPOSITORY
https://github.com/kitabisa/teler

Frequently Asked Questions

What is CVE-2020-26213?
CVE-2020-26213 is a security vulnerability in Ktbs.dev/teler involving Denial-of-Service within Docker container under CWE-476: NULL Pointer Dereference.
Which Ktbs.dev/teler versions are affected?
Affected versions include releases prior to 0.0.1 across affected packages: ktbs.dev/teler.
What version fixes CVE-2020-26213?
Upgrading to 0.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ktbs.dev/teler affected?
Yes, ktbs.dev/teler is affected in releases prior to 0.0.1. Upgrade your dependency to 0.0.1 or later.
What is the CVSS score of CVE-2020-26213?
CVE-2020-26213 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2020-26213?
CVE-2020-26213 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 CVE-2020-26213?
Run the dependency tree command: 'inspect dependencies for ktbs.dev/teler'. 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-jhj6-5mh6-4pvf",
  "modified" : "2023-10-02T15:30:28Z",
  "published" : "2021-05-24T17:00:46Z",
  "aliases" : [ "CVE-2020-26213" ],
  "summary" : "Denial-of-Service within Docker container",
  "details" : "### Impact\nIf you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills.\n\n### Specific Go Packages Affected\nktbs.dev/teler/pkg/errors\n\n### Patches\nUpgrade to the >= 0.0.1 version.\n\n### Workarounds\nN/A\n\n### References\n- https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Issues Section](https://github.com/kitabisa/teler/issues)\n* Email us at [infosec@kitabisa.com](mailto:infosec@kitabisa.com)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "ktbs.dev/teler"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/kitabisa/teler/security/advisories/GHSA-jhj6-5mh6-4pvf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-26213"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kitabisa/teler"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-21T22:09:36Z",
    "nvd_published_at" : "2020-11-06T17:15:00Z"
  }
}