vulnerability
Arch Linux: Denial of service (CVE-2019-9516)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:N/I:N/A:C) | Aug 13, 2019 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Aug 13, 2019
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
An issue has been found in several HTTP/2 implementations, where 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, potentially leading to a denial of service.
Solution
arch-linux-upgrade-latest
References
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