Vulnerability-Lookup

GHSA-CMQ9-W454-24MF

Vulnerability from github – Published: 2023-01-17 21:30 – Updated: 2023-01-23 21:30

Details

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-47929"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-17T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with \"tc qdisc\" and \"tc class\" commands. This affects qdisc_graft in net/sched/sch_api.c.",
  "id": "GHSA-cmq9-w454-24mf",
  "modified": "2023-01-23T21:30:26Z",
  "published": "2023-01-17T21:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47929"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"
    },
    {
      "type": "WEB",
      "url": "https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5324"
    },
    {
      "type": "WEB",
      "url": "https://www.spinics.net/lists/netdev/msg555705.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-47929 (GCVE-0-2022-47929)

Vulnerability from cvelistv5 – Published: 2023-01-17 00:00 – Updated: 2025-04-04 18:01

Summary

Severity

5.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-476 - NULL Pointer Dereference

Assigner

mitre

References

7 references

URL	Tags
https://www.spinics.net/lists/netdev/msg555705.html
https://tldp.org/HOWTO/Traffic-Control-HOWTO/comp…
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://cdn.kernel.org/pub/linux/kernel/v6.x/Chan…
https://www.debian.org/security/2023/dsa-5324	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:02:36.590Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html"
          },
          {
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            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407"
          },
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            "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6"
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            "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html"
          },
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            "tags": [
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              "x_transferred"
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            "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"
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        ],
        "title": "CVE Program Container"
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        "metrics": [
          {
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              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
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                "timestamp": "2025-04-04T18:00:53.557625Z",
                "version": "2.0.3"
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      },
      "references": [
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        {
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        },
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          "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6"
        },
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    "assignerShortName": "mitre",
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    "datePublished": "2023-01-17T00:00:00.000Z",
    "dateReserved": "2022-12-22T00:00:00.000Z",
    "dateUpdated": "2025-04-04T18:01:31.109Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

GHSA-CMQ9-W454-24MF

CVE-2022-47929 (GCVE-0-2022-47929)

Tags

Sightings

Nomenclature