VulnerableCode Package Details - pkg:deb/debian/h2o@2.2.5%2Bdfsg2-2%2Bdeb10u1

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Vulnerability	Summary	Fixed by
VCID-bcpe-g3wj-bqhr Aliases: CVE-2019-9515	Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.	2.2.5+dfsg2-6 Affected by 0 other vulnerabilities.
VCID-wv7u-zn1z-nufa Aliases: CVE-2019-9514 GHSA-39qc-96h7-956f	Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.	2.2.5+dfsg2-6 Affected by 0 other vulnerabilities.
VCID-xuk6-2n6t-37e1 Aliases: CVE-2019-9512 GHSA-hgr8-6h9x-f7q9	Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.	2.2.5+dfsg2-6 Affected by 0 other vulnerabilities.

Vulnerability

Summary

Fixed by

VCID-bcpe-g3wj-bqhr
Aliases:
CVE-2019-9515

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.

VCID-wv7u-zn1z-nufa
Aliases:
CVE-2019-9514
GHSA-39qc-96h7-956f

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.

VCID-xuk6-2n6t-37e1
Aliases:
CVE-2019-9512
GHSA-hgr8-6h9x-f7q9

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.

Vulnerability	Summary	Aliases
This package is not known to fix vulnerabilities.

Vulnerability

Summary

Aliases

This package is not known to fix vulnerabilities.

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2025-08-01T18:16:02.336038+00:00	Debian Oval Importer	Affected by	VCID-wv7u-zn1z-nufa	https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2	37.0.0
2025-08-01T17:40:32.325653+00:00	Debian Oval Importer	Affected by	VCID-xuk6-2n6t-37e1	https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2	37.0.0
2025-08-01T13:23:48.419045+00:00	Debian Oval Importer	Affected by	VCID-bcpe-g3wj-bqhr	https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2	37.0.0