vulnerability
IBM WebSphere Application Server: CVE-2019-9518: Multiple vulnerabilities in HTTP/2 implementation used by WebSphere Application Server Liberty
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Aug 13, 2019 | Jan 3, 2020 | Aug 11, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Aug 13, 2019
Added
Jan 3, 2020
Modified
Aug 11, 2025
Description
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
Solutions
ibm-was-install-8-5-ph16611-libertyibm-was-upgrade-8-5-19-0-0-10-liberty
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.