GHSA-553F-PJFM-RX99

Vulnerability from github – Published: 2022-05-14 00:58 – Updated: 2022-05-14 00:58
VLAI?
Details

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

Severity ?
4.7 (Medium)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2019-11190"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-12T00:29:00Z",
    "severity": "MODERATE"
  },
  "details": "The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.",
  "id": "GHSA-553f-pjfm-rx99",
  "modified": "2022-05-14T00:58:54Z",
  "published": "2022-05-14T00:58:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11190"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/commit/?id=a5b5352558f6808db0589644ea5401b3e3148a0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/commit/?id=e1676b55d874a43646e8b2c46d87f2f3e45516ff"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4008-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4008-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4008-3"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4/1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/04/15/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/107890"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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Detection rules are retrieved from Rulezet.