ghsa-3mq5-2hmg-6cr7
Vulnerability from github
Published
2023-09-11 18:31
Modified
2023-09-11 18:31
Severity ?
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Details

A stack based out-of-bounds write flaw was found in the netfilter subsystem in the Linux kernel. If the expression length is a multiple of 4 (register size), the nft_exthdr_eval family of functions writes 4 NULL bytes past the end of the regs argument, leading to stack corruption and potential information disclosure or a denial of service.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-4881"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-11T17:15:07Z",
    "severity": null
  },
  "details": "A stack based out-of-bounds write flaw was found in the netfilter subsystem in the Linux kernel. If the expression length is a multiple of 4 (register size), the `nft_exthdr_eval` family of functions writes 4 NULL bytes past the end of the `regs` argument, leading to stack corruption and potential information disclosure or a denial of service.",
  "id": "GHSA-3mq5-2hmg-6cr7",
  "modified": "2023-09-11T18:31:30Z",
  "published": "2023-09-11T18:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4881"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-4881"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238312"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}


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