Vulnerability-Lookup

GHSA-8RH9-27VF-9CWR

Vulnerability from github – Published: 2026-10-06 09:31 – Updated: 2026-10-06 09:31

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: libipw: reject TKIP frames without a full MIC

libipw_michael_mic_verify() assumes that an skb contains an eight-byte Michael MIC. A short TKIP frame makes the unsigned payload length wrap, causing michael_mic() to read past the skb.

Check that the MIC is present before verifying it, and use the existing MICHAEL_MIC_LEN constant for all MIC lengths in the verifier.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98193"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T09:18:04Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: reject TKIP frames without a full MIC\n\nlibipw_michael_mic_verify() assumes that an skb contains an eight-byte\nMichael MIC. A short TKIP frame makes the unsigned payload length wrap,\ncausing michael_mic() to read past the skb.\n\nCheck that the MIC is present before verifying it, and use the existing\nMICHAEL_MIC_LEN constant for all MIC lengths in the verifier.",
  "id": "GHSA-8rh9-27vf-9cwr",
  "modified": "2026-10-06T09:31:29Z",
  "published": "2026-10-06T09:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98193"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/06f42accaf3c6aecab1dcc57f68dde6c06c8b380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a7fb67364817710c96785ff86b71a2711ee92cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac7c08626f67844336086cf563f417566b76f0d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb7ae8910cc886885aea95abb7c2e578a2341646"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98193 (GCVE-0-2026-98193)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44

Title

wifi: libipw: reject TKIP frames without a full MIC

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: reject TKIP frames without a full MIC libipw_michael_mic_verify() assumes that an skb contains an eight-byte Michael MIC. A short TKIP frame makes the unsigned payload length wrap, causing michael_mic() to read past the skb. Check that the MIC is present before verifying it, and use the existing MICHAEL_MIC_LEN constant for all MIC lengths in the verifier.

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

4 references

URL	Tags
https://git.kernel.org/stable/c/9a7fb67364817710c…
https://git.kernel.org/stable/c/ac7c08626f6784433…
https://git.kernel.org/stable/c/bb7ae8910cc886885…
https://git.kernel.org/stable/c/06f42accaf3c6aeca…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < 9a7fb67364817710c96785ff86b71a2711ee92cb (git) Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < ac7c08626f67844336086cf563f417566b76f0d7 (git) Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < bb7ae8910cc886885aea95abb7c2e578a2341646 (git) Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < 06f42accaf3c6aecab1dcc57f68dde6c06c8b380 (git)
Linux	Linux	Affected: 2.6.14 Unaffected: 0 , < 2.6.14 (semver) Unaffected: 6.12.112 , ≤ 6.12.* (semver) Unaffected: 6.18.54 , ≤ 6.18.* (semver) Unaffected: 7.2.8 , ≤ 7.2.* (semver) Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9a7fb67364817710c96785ff86b71a2711ee92cb",
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              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "versionType": "git"
            },
            {
              "lessThan": "ac7c08626f67844336086cf563f417566b76f0d7",
              "status": "affected",
              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "versionType": "git"
            },
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            },
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              "versionType": "git"
            }
          ]
        },
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          "programFiles": [
            "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.14"
            },
            {
              "lessThan": "2.6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.14",
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: reject TKIP frames without a full MIC\n\nlibipw_michael_mic_verify() assumes that an skb contains an eight-byte\nMichael MIC. A short TKIP frame makes the unsigned payload length wrap,\ncausing michael_mic() to read past the skb.\n\nCheck that the MIC is present before verifying it, and use the existing\nMICHAEL_MIC_LEN constant for all MIC lengths in the verifier."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T08:44:33.584Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/06f42accaf3c6aecab1dcc57f68dde6c06c8b380"
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      ],
      "title": "wifi: libipw: reject TKIP frames without a full MIC",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98193",
    "datePublished": "2026-10-06T08:44:33.584Z",
    "dateReserved": "2026-09-25T10:25:14.323Z",
    "dateUpdated": "2026-10-06T08:44:33.584Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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.
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GHSA-8RH9-27VF-9CWR

CVE-2026-98193 (GCVE-0-2026-98193)

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