vulnerability
Amazon Linux AMI 2: CVE-2019-9517: Security patch for mod_http2 (ALAS-2019-1342)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Aug 13, 2019 | Apr 27, 2020 | Nov 27, 2024 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Aug 13, 2019
Added
Apr 27, 2020
Modified
Nov 27, 2024
Description
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.
Solutions
amazon-linux-ami-2-upgrade-mod_http2amazon-linux-ami-2-upgrade-mod_http2-debuginfo
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