ghsa-v727-f437-6cxx
Vulnerability from github
Published
2023-12-21 21:30
Modified
2024-08-02 15:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-6546"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-21T20:15:08Z",
    "severity": "HIGH"
  },
  "details": "A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.",
  "id": "GHSA-v727-f437-6cxx",
  "modified": "2024-08-02T15:31:16Z",
  "published": "2023-12-21T21:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6546"
    },
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      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255498"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-6546"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2024:4970"
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      "url": "http://www.openwall.com/lists/oss-security/2024/04/10/18"
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    {
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      "url": "http://www.openwall.com/lists/oss-security/2024/04/10/21"
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      "url": "http://www.openwall.com/lists/oss-security/2024/04/11/7"
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  "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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