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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-4505-1 | nginx security update |
EUVD |
EUVD-2019-18888 | 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. |
Ubuntu USN |
USN-4099-1 | nginx vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
epss
|
Tue, 14 Jan 2025 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:* |
Projects
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Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2024-08-04T21:54:44.285Z
Reserved: 2019-03-01T00:00:00
Link: CVE-2019-9516
No data.
Status : Modified
Published: 2019-08-13T21:15:12.583
Modified: 2025-01-14T19:29:55.853
Link: CVE-2019-9516
OpenCVE Enrichment
No data.
Debian DSA
EUVD
Ubuntu USN