ghsa-c8w8-4f3f-5v3j
Vulnerability from github
Published
2022-03-05 00:00
Modified
2022-03-18 00:01
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3640"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-03T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.",
  "id": "GHSA-c8w8-4f3f-5v3j",
  "modified": "2022-03-18T00:01:30Z",
  "published": "2022-03-05T00:00:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3640"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:7444"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:7683"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:7933"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8267"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-3640"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1980646"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16\u0026id=99c23da0eed4fd20cae8243f2b51e10e66aa0951"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://lkml.org/lkml/2021/8/28/238"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220419-0003"
    },
    {
      "type": "WEB",
      "url": "https://ubuntu.com/security/CVE-2021-3640"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5096"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2021/07/22/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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