Vulnerability-Lookup

CVE-2021-37159 (GCVE-0-2021-37159)

Vulnerability from cvelistv5 – Published: 2021-07-21 00:00 – Updated: 2024-08-04 01:16

Summary

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://www.spinics.net/lists/linux-usb/msg202228.html
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://www.oracle.com/security-alerts/cpujul2022.html
https://security.netapp.com/advisory/ntap-2021081…
https://git.kernel.org/cgit/linux/kernel/git/torv…
https://git.kernel.org/cgit/linux/kernel/git/torv…
https://bugzilla.suse.com/show_bug.cgi?id=1188601

Show details on NVD website

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:18:01+00:00",
      "cve": "CVE-2021-37159",
      "id": "CVE-2021-37159",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:fixed": "150",
      "product_status:known_affected": "149",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-37159.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-08T00:20:25Z",
      "cve": "CVE-2021-37159",
      "id": "CVE-2021-37159",
      "initial_release_date": "2023-02-15T03:39:37Z",
      "product_status:known_affected": "323",
      "product_status:known_not_affected": "57",
      "product_status:recommended": "1120",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-37159",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-37159.json",
      "version": "39"
    }
  }
}

FKIE_CVE-2021-37159

Vulnerability from fkie_nvd - Published: 2021-07-21 15:16 - Updated: 2026-06-17 04:00

Severity

6.4 (Medium) - CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
cve@mitre.org	https://bugzilla.suse.com/show_bug.cgi?id=1188601
cve@mitre.org	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca
cve@mitre.org	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dcb713d53e2eadf42b878c12a471e74dc6ed3145
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html	Mailing List, Third Party Advisory
cve@mitre.org	https://security.netapp.com/advisory/ntap-20210819-0003/	Third Party Advisory
cve@mitre.org	https://www.oracle.com/security-alerts/cpujul2022.html	Patch, Third Party Advisory
cve@mitre.org	https://www.spinics.net/lists/linux-usb/msg202228.html	Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.suse.com/show_bug.cgi?id=1188601
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dcb713d53e2eadf42b878c12a471e74dc6ed3145
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.netapp.com/advisory/ntap-20210819-0003/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.oracle.com/security-alerts/cpujul2022.html	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.spinics.net/lists/linux-usb/msg202228.html	Mailing List, Patch, Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
debian	debian_linux	9.0
oracle	communications_cloud_native_core_binding_support_function	22.1.3
oracle	communications_cloud_native_core_network_exposure_function	22.1.1
oracle	communications_cloud_native_core_policy	22.2.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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              "versionEndIncluding": "5.13.4",
              "vulnerable": true
            }
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          "negate": false,
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        }
      ]
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              "vulnerable": true
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            {
              "criteria": "cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "9955F62A-75D3-4347-9AD3-5947FC365838",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "7A6D77C7-A2F4-4700-AB5A-3EC853496ECA",
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          "negate": false,
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free."
    },
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    }
  ],
  "id": "CVE-2021-37159",
  "lastModified": "2026-06-17T04:00:09.977",
  "metrics": {
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          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
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        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
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    "cvssMetricV31": [
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          "baseScore": 6.4,
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          "confidentialityImpact": "HIGH",
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    },
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    },
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    },
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      "tags": [
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    {
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        },
        {
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        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-JH5H-88QQ-M547

Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2024-03-25 03:31

Details

Severity

6.4 (Medium)


                  
                    CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-37159"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-21T15:16:00Z",
    "severity": "HIGH"
  },
  "details": "hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.",
  "id": "GHSA-jh5h-88qq-m547",
  "modified": "2024-03-25T03:31:43Z",
  "published": "2022-05-24T19:08:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37159"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1188601"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca"
    },
    {
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    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"
    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210819-0003"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.spinics.net/lists/linux-usb/msg202228.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-37159

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-37159

Aliases

CVE-2021-37159

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-37159",
    "description": "hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.",
    "id": "GSD-2021-37159",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-37159.html",
      "https://ubuntu.com/security/CVE-2021-37159",
      "https://security.archlinux.org/CVE-2021-37159",
      "https://linux.oracle.com/cve/CVE-2021-37159.html",
      "https://access.redhat.com/errata/RHSA-2022:1975",
      "https://access.redhat.com/errata/RHSA-2022:1988"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-37159"
      ],
      "details": "hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.",
      "id": "GSD-2021-37159",
      "modified": "2023-12-13T01:23:10.145684Z",
      "schema_version": "1.4.0"
    }
  },
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              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210819-0003/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.spinics.net/lists/linux-usb/msg202228.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-415"
              },
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

MSRC_CVE-2021-37159

Vulnerability from csaf_microsoft - Published: 2021-07-02 00:00 - Updated: 2021-12-16 00:00

Summary

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state leading to a use-after-free and a double free.

Scope

1 vulnerability in this advisory, including CVE-2021-37159.

CVE-2021-37159

6.4 (Medium)


                
                  CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known affected: 2 products

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

OPENSUSE-SU-2021:1501-1

Vulnerability from csaf_opensuse - Published: 2021-11-24 16:00 - Updated: 2021-11-24 16:00

Summary

Security update for the Linux Kernel

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 19 products

Open the full advisory

OPENSUSE-SU-2021:3675-1

Vulnerability from csaf_opensuse - Published: 2021-11-16 16:48 - Updated: 2021-11-16 16:48

Summary

Security update for the Linux Kernel

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 143 products

Open the full advisory

OPENSUSE-SU-2021:3806-1

Vulnerability from csaf_opensuse - Published: 2021-11-25 13:19 - Updated: 2021-11-25 13:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 14 products

Open the full advisory

OPENSUSE-SU-2021:3876-1

Vulnerability from csaf_opensuse - Published: 2021-12-02 07:19 - Updated: 2021-12-02 07:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

43 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 21 products

Open the full advisory

RHSA-2022:1988

Vulnerability from csaf_opensuse - Published: 2022-05-10 00:00 - Updated: 2026-09-15 08:43

Summary

security update for kernel

Severity

Important

Scope

67 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Recommended: 20 products

Open the full advisory

RHSA-2022:1975

Vulnerability from csaf_redhat - Published: 2022-05-10 13:43 - Updated: 2026-08-26 18:35

Summary

Red Hat Security Advisory: kernel-rt security and bug fix update

Severity

Important

Scope

48 vulnerabilities in this advisory, including CVE-2021-37159.

CVE-2021-37159

A flaw use-after-free in the Linux kernel USB High Speed Mobile Devices functionality was found in the way user detaches USB device. A local user could use this flaw to crash the system or escalate their privileges on the system.

6.4 (Medium)


                
                  CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed: 30 products

https://access.redhat.com/errata/RHSA-2022:1975

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2021-37159 (GCVE-0-2021-37159)

Tags

Sightings

Nomenclature

Related by attack behaviour