GHSA-32QX-4WXM-FCW8

Vulnerability from github – Published: 2022-05-24 16:53 – Updated: 2023-02-08 00:30
VLAI
Details

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2017-18509"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-08-13T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels.",
  "id": "GHSA-32qx-4wxm-fcw8",
  "modified": "2023-02-08T00:30:35Z",
  "published": "2022-05-24T16:53:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18509"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/99253eb750fda6a644d5188fb26c43bad8d5a745"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99253eb750fda6a644d5188fb26c43bad8d5a745"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.openwall.net/netdev/2017/12/04/40"
    },
    {
      "type": "WEB",
      "url": "https://pulsesecurity.co.nz/advisories/linux-kernel-4.9-inetcsklistenstop-gpf"
    },
    {
      "type": "WEB",
      "url": "https://salsa.debian.org/kernel-team/linux/commit/baefcdc2f29923e7325ce4e1a72c3ff0a9800f32"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Aug/26"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K41582535"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K41582535?utm_source=f5support\u0026amp;utm_medium=RSS"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4145-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4497"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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