Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2019-9516

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

  • Published: Aug 13, 2019
  • Updated: Apr 13, 2023
  • CVE: CVE-2019-9516
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:L/Au:S/C:N/I:N/A:C

CWEs: