GHSA-67VJ-F5VQ-78C5

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33
VLAI
Details

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

ipvs: ensure inner headers in ICMP errors are in headroom

Sashiko points out that after stripping the outer headers with pskb_pull() we should ensure the inner IP headers in ICMP errors from tunnels are present in the skb headroom for functions like ipv4_update_pmtu(), icmp_send() and IP_VS_DBG().

Also, add more checks for the length of the inner headers.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-72319"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:04Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: ensure inner headers in ICMP errors are in headroom\n\nSashiko points out that after stripping the outer headers\nwith pskb_pull() we should ensure the inner IP headers\nin ICMP errors from tunnels are present in the skb headroom\nfor functions like ipv4_update_pmtu(), icmp_send() and\nIP_VS_DBG().\n\nAlso, add more checks for the length of the inner headers.",
  "id": "GHSA-67vj-f5vq-78c5",
  "modified": "2026-08-17T06:33:23Z",
  "published": "2026-08-15T06:32:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72319"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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