Vulnerability-Lookup

FKIE_CVE-2022-48911

Vulnerability from fkie_nvd - Published: 2024-08-22 02:15 - Updated: 2026-08-04 10:17

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: fix possible use-after-free Eric Dumazet says: The sock_hold() side seems suspect, because there is no guarantee that sk_refcnt is not already 0. On failure, we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller. v2: split skb prefetch hunk into separate change

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/21b27b2baa27423286e9b8d3f0b194d587083d95	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/34dc4a6a7f261736ef7183868a5bddad31c7f9e3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/43c25da41e3091b31a906651a43e80a2719aa1ff	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4d05239203fa38ea8a6f31e228460da4cb17a71a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c3873070247d9e3c7a6b0cf9bf9b45e8018427b1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd648bd1b33a828f62befa696b206c688da0ec43	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ef97921ccdc243170fcef857ba2a17cf697aece5	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.17
linux	linux_kernel	5.17
linux	linux_kernel	5.17
linux	linux_kernel	5.17
linux	linux_kernel	5.17
linux	linux_kernel	5.17

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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              "version": "0",
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              "status": "unaffected",
              "version": "4.9.305",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "4.14.270",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "4.19.233",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.13",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
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          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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          "negate": false,
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_queue: fix possible use-after-free\n\nEric Dumazet says:\n  The sock_hold() side seems suspect, because there is no guarantee\n  that sk_refcnt is not already 0.\n\nOn failure, we cannot queue the packet and need to indicate an\nerror.  The packet will be dropped by the caller.\n\nv2: split skb prefetch hunk into separate change"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_queue: corrige posible use-after-free Eric Dumazet dice: El lado sock_hold() parece sospechoso, porque no hay garant\u00eda de que sk_refcnt no sea ya 0. En caso de falla, No podemos poner en cola el paquete y necesitamos indicar un error. La persona que llama descartar\u00e1 el paquete. v2: dividir el fragmento de captaci\u00f3n previa de skb en un cambio separado"
    }
  ],
  "id": "CVE-2022-48911",
  "lastModified": "2026-08-04T10:17:25.913",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
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        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "source": "nvd@nist.gov",
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    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2022-48911",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:34:00.950489Z",
          "version": "2.0.3"
        }
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  "published": "2024-08-22T02:15:05.483",
  "references": [
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  "vulnStatus": "Modified",
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          "lang": "en",
          "value": "CWE-416"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-48911 (GCVE-0-2022-48911)

Vulnerability from cvelistv5 – Published: 2024-08-22 01:31 – Updated: 2026-08-05 08:52

Title

netfilter: nf_queue: fix possible use-after-free

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:34 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6843 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/21b27b2baa2742328…
https://git.kernel.org/stable/c/ef97921ccdc243170…
https://git.kernel.org/stable/c/34dc4a6a7f261736e…
https://git.kernel.org/stable/c/43c25da41e3091b31…
https://git.kernel.org/stable/c/4d05239203fa38ea8…
https://git.kernel.org/stable/c/dd648bd1b33a828f6…
https://git.kernel.org/stable/c/dcc3cb920bf7ba66a…
https://git.kernel.org/stable/c/c3873070247d9e3c7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < 21b27b2baa27423286e9b8d3f0b194d587083d95 (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < ef97921ccdc243170fcef857ba2a17cf697aece5 (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < 34dc4a6a7f261736ef7183868a5bddad31c7f9e3 (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < 43c25da41e3091b31a906651a43e80a2719aa1ff (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < 4d05239203fa38ea8a6f31e228460da4cb17a71a (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < dd648bd1b33a828f62befa696b206c688da0ec43 (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee (git) Affected: 271b72c7fa82c2c7a795bc16896149933110672d , < c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 (git)
Linux	Linux	Affected: 2.6.29 Unaffected: 0 , < 2.6.29 (semver) Unaffected: 4.9.305 , ≤ 4.9.* (semver) Unaffected: 4.14.270 , ≤ 4.14.* (semver) Unaffected: 4.19.233 , ≤ 4.19.* (semver) Unaffected: 5.4.183 , ≤ 5.4.* (semver) Unaffected: 5.10.104 , ≤ 5.10.* (semver) Unaffected: 5.15.27 , ≤ 5.15.* (semver) Unaffected: 5.16.13 , ≤ 5.16.* (semver) Unaffected: 5.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48911",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:34:00.950489Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:02.033Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_queue.h",
            "net/netfilter/nf_queue.c",
            "net/netfilter/nfnetlink_queue.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "21b27b2baa27423286e9b8d3f0b194d587083d95",
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              "versionType": "git"
            },
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              "lessThan": "34dc4a6a7f261736ef7183868a5bddad31c7f9e3",
              "status": "affected",
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            },
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              "lessThan": "dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee",
              "status": "affected",
              "version": "271b72c7fa82c2c7a795bc16896149933110672d",
              "versionType": "git"
            },
            {
              "lessThan": "c3873070247d9e3c7a6b0cf9bf9b45e8018427b1",
              "status": "affected",
              "version": "271b72c7fa82c2c7a795bc16896149933110672d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_queue.h",
            "net/netfilter/nf_queue.c",
            "net/netfilter/nfnetlink_queue.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.29"
            },
            {
              "lessThan": "2.6.29",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.305",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.233",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.305",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.270",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.233",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.183",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.104",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.27",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.13",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17",
                  "versionStartIncluding": "2.6.29",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_queue: fix possible use-after-free\n\nEric Dumazet says:\n  The sock_hold() side seems suspect, because there is no guarantee\n  that sk_refcnt is not already 0.\n\nOn failure, we cannot queue the packet and need to indicate an\nerror.  The packet will be dropped by the caller.\n\nv2: split skb prefetch hunk into separate change"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires configuring NFQUEUE (nftables/iptables + nfnetlink_queue) and driving local socket lifecycle so packets hit __nf_queue with a dying state-\u003esk; this is a local netfilter/netlink path, not a remote packet-only attack.\nAC:L - The attacker controls both sides of the race by installing NFQUEUE rules, running a queue listener, and racing connect/close (as in the TCP_NEW_SYN_RECV selftest), so success does not depend on external conditions.\nPR:L - Setting up nfnetlink/nftables NFQUEUE needs CAP_NET_ADMIN, but that capability is obtainable inside an unprivileged user+network namespace via netlink_net_capable against the netns user_ns.\nUI:N - No victim interaction is required; the attacker configures the queue, generates traffic, and closes sockets independently.\nS:U - Impact is kernel memory corruption / privilege escalation within the same host security authority, not a VM escape or cross-boundary breakout.\nC:H - Unsafe sock_hold() on a socket with sk_refcnt already 0 is a use-after-free of struct sock, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same sock UAF enables heap reclaim/spray and corrupted socket lifetime handling (illegitimate refs and later sock_gen_put/sk_free paths), supporting arbitrary write / control-flow hijacking.\nA:H - The UAF reliably causes kernel oops/panic (refcount addition-on-0 and related free-path corruption), so availability impact is High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:52:51.573Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/21b27b2baa27423286e9b8d3f0b194d587083d95"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef97921ccdc243170fcef857ba2a17cf697aece5"
        },
        {
          "url": "https://git.kernel.org/stable/c/34dc4a6a7f261736ef7183868a5bddad31c7f9e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/43c25da41e3091b31a906651a43e80a2719aa1ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d05239203fa38ea8a6f31e228460da4cb17a71a"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd648bd1b33a828f62befa696b206c688da0ec43"
        },
        {
          "url": "https://git.kernel.org/stable/c/dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3873070247d9e3c7a6b0cf9bf9b45e8018427b1"
        }
      ],
      "title": "netfilter: nf_queue: fix possible use-after-free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48911",
    "datePublished": "2024-08-22T01:31:07.463Z",
    "dateReserved": "2024-08-21T06:06:23.294Z",
    "dateUpdated": "2026-08-05T08:52:51.573Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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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