FreeBSD : h2o -- Malformed HTTP/1.1 causes Out-of-Memory Denial of Service (4da51989-5a8b-4eb9-b442-46d94ec0802d)

high Nessus Plugin ID 174957

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Version 1.3

May 14, 2023, 10:07 AM

  • CVSS metrics ("CVSSv2 score" changed from 5.0 to 8.5. "CVSSv2 vector" changed from "CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P" to "CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C". "CVSSv3 score" changed from 7.5 to 8.2. "CVSSv3 vector" changed from "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H")
  • CVSSv2 severity (based on CVE-2023-30847, severity increased from "Medium" to "High")
  • CVSSv3 score source (set to "CVE-2023-30847")

Plugin Feed: 202305141007

Version 1.2

May 14, 2023, 6:02 AM

  • CVSS metrics ("CVSSv2 score" changed from 5.0 to 8.5. "CVSSv2 vector" changed from "CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P" to "CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C". "CVSSv3 score" changed from 7.5 to 8.2. "CVSSv3 vector" changed from "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H")
  • CVSSv2 severity (based on CVE-2023-30847, severity increased from "Medium" to "High")
  • CVSSv3 score source (set to "CVE-2023-30847")

Plugin Feed: 202305140602

Version 1.1

May 14, 2023, 2:08 AM

  • CVSSv3 score source (set to "CVE-2023-30847")
  • CVSS metrics ("CVSSv2 score" changed from 5.0 to 8.5. "CVSSv2 vector" changed from "CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P" to "CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C". "CVSSv3 score" changed from 7.5 to 8.2. "CVSSv3 vector" changed from "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H")
  • CVSSv2 severity (based on CVE-2023-30847, severity increased from "Medium" to "High")

Plugin Feed: 202305140208

Version 1.0

May 1, 2023, 4:05 AM

  • New

Plugin Feed: 202305010405

* Changelogs are generally available for changes made after Nov 1, 2022