gsd-2023-0461
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c
Aliases
Aliases
CVE-2023-0461


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-0461",
    "id": "GSD-2023-0461",
    "references": [
      "https://www.suse.com/security/cve/CVE-2023-0461.html",
      "https://ubuntu.com/security/CVE-2023-0461"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2023-0461",
      "modified": "2023-12-13T01:20:23.114918Z",
      "schema_version": "1.4.0"
    }
  },
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      "lastModifiedDate": "2023-06-06T19:16Z",
      "publishedDate": "2023-02-28T15:15Z"
    }
  }
}


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