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Package details: pkg:deb/debian/h2o@2.2.5%2Bdfsg2-2%2Bdeb10u1
purl pkg:deb/debian/h2o@2.2.5%2Bdfsg2-2%2Bdeb10u1
Next non-vulnerable version 2.2.5+dfsg2-6
Latest non-vulnerable version 2.2.5+dfsg2-6
Risk 4.0
Vulnerabilities affecting this package (3)
Vulnerability Summary Fixed by
VCID-aqt5-2ffy-9bgs
Aliases:
CVE-2019-9515
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.
VCID-hbte-dsw2-y7ad
Aliases:
CVE-2019-9512
GHSA-hgr8-6h9x-f7q9
golang.org/x/net/http vulnerable to ping floods 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. ### Specific Go Packages Affected golang.org/x/net/http2
2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.
VCID-n66u-b73u-zucb
Aliases:
CVE-2019-9514
GHSA-39qc-96h7-956f
golang.org/x/net/http vulnerable to a reset flood Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. Servers that accept direct connections from untrusted clients could be remotely made to allocate an unlimited amount of memory, until the program crashes. 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. ### Specific Go Packages Affected golang.org/x/net/http2
2.2.5+dfsg2-6
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-15T22:47:43.218734+00:00 Debian Oval Importer Affected by VCID-n66u-b73u-zucb https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T22:05:26.503753+00:00 Debian Oval Importer Affected by VCID-hbte-dsw2-y7ad https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T17:05:18.231089+00:00 Debian Oval Importer Affected by VCID-aqt5-2ffy-9bgs https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-11T22:24:10.601154+00:00 Debian Oval Importer Affected by VCID-n66u-b73u-zucb https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T21:43:27.961363+00:00 Debian Oval Importer Affected by VCID-hbte-dsw2-y7ad https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T16:51:47.862756+00:00 Debian Oval Importer Affected by VCID-aqt5-2ffy-9bgs https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-08T22:00:08.379092+00:00 Debian Oval Importer Affected by VCID-n66u-b73u-zucb https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T21:21:19.407131+00:00 Debian Oval Importer Affected by VCID-hbte-dsw2-y7ad https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T16:41:48.639637+00:00 Debian Oval Importer Affected by VCID-aqt5-2ffy-9bgs https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0