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Ubuntu: USN-4866-1 (CVE-2019-9518): Netty vulnerabilities

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Ubuntu: USN-4866-1 (CVE-2019-9518): Netty vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/13/2019
Created
03/29/2023
Added
03/22/2023
Modified
11/27/2024

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.

Solution(s)

  • ubuntu-pro-upgrade-libnetty-java

References

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