{
  "id": "openEuler-SA-2023-1990",
  "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2023-1990",
  "title": "An update for kernel is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-SP1 and openEuler-22.03-LTS-SP2",
  "severity": "High",
  "description": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nA 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.(CVE-2023-6546)",
  "cves": [
    {
      "id": "CVE-2023-6546",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6546",
      "severity": "High"
    }
  ]
}