ghsa-8v97-5c8j-7wmc
Vulnerability from github
Published
2022-05-13 01:46
Modified
2022-05-13 01:46
Severity ?
4.4 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Details

The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.

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{
  "affected": [],
  "aliases": [
    "CVE-2017-5551"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-02-06T06:59:00Z",
    "severity": "MODERATE"
  },
  "details": "The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.",
  "id": "GHSA-8v97-5c8j-7wmc",
  "modified": "2022-05-13T01:46:11Z",
  "published": "2022-05-13T01:46:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5551"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1416126"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3791"
    },
    {
      "type": "WEB",
      "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/01/21/3"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/95717"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1038053"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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