ghsa-4r7r-87cf-rc4r
Vulnerability from github
Published
2022-05-14 00:58
Modified
2022-05-14 00:58
Severity ?
5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-9213"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-05T22:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.",
  "id": "GHSA-4r7r-87cf-rc4r",
  "modified": "2022-05-14T00:58:07Z",
  "published": "2022-05-14T00:58:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9213"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/0a1d52994d440e21def1c2174932410b4f2a98a1"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/46502"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3933-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3933-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3932-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3932-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3931-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3931-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3930-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3930-1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.162"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.14"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.27"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.105"
    },
    {
      "type": "WEB",
      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1792"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1480"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1479"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:0831"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/107296"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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