ghsa-32qx-4wxm-fcw8
Vulnerability from github
Published
2022-05-24 16:53
Modified
2023-02-08 00:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

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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&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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