{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-53559",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53559",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-04T15:17:03.497Z",
    "updatedAt": "2026-08-05T09:14:50.051Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ip_vti: fix potential slab-use-after-free in decode_session6",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nip_vti: fix potential slab-use-after-free in decode_session6\n\nWhen ip_vti device is set to the qdisc of the sfb type, the cb field\nof the sent skb may be modified during enqueuing. Then,\nslab-use-after-free may occur when ip_vti device sends IPv6 packets.\nAs commit f855691975bb (\"xfrm6: Fix the nexthdr offset in\n_decode_session6.\") showed, xfrm_decode_session was originally intended\nonly for the receive path. IP6CB(skb)->nhoff is not set during\ntransmission. Therefore, set the cb field in the skb to 0 before\nsending packets.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "82fb41c5de243e7dfa90f32ca58e35adaff56c1d"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7dfe23659f3677c08a60a0056cda2d91a79c15ca"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d34c30442d5e53a33cde79ca163320dbe2432cbd"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b4d69539fdea138af2befe08893850c89248068"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e1e04cc2ef2c0c0866c19f5627149a76c2baae32"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2b05bf5dc437f7891dd409a3eaf5058459391c7a"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "78e397a43e1c47321a4679cc49a6c4530bf820b9"
            },
            {
              "version": "f855691975bb06373a98711e4cfe2c224244b536",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6018a266279b1a75143c7c0804dd08a5fc4c3e0b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.19"
            },
            {
              "version": "4.14.324",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.293",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.255",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.192",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.128",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}