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| purl | pkg:deb/debian/h2o@2.2.5%2Bdfsg2-2%2Bdeb10u1 |
| Next non-vulnerable version | None. |
| Latest non-vulnerable version | None. |
| Risk | 10.0 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-3gua-vux5-aaaq
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. |
Affected by 1 other vulnerability. |
|
VCID-6y3x-kyj7-aaaf
Aliases: CVE-2023-44487 GHSA-qppj-fm5r-hxr3 VSV00013 |
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. |
Affected by 1 other vulnerability. Affected by 0 other vulnerabilities. Affected by 0 other vulnerabilities. Affected by 0 other vulnerabilities. Affected by 0 other vulnerabilities. |
|
VCID-6ypc-78mx-aaac
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. |
Affected by 1 other vulnerability. |
|
VCID-kfap-b6t7-aaam
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. |
Affected by 1 other vulnerability. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|---|---|---|---|---|
| 2025-06-21T19:17:20.994962+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 | 36.1.3 |
| 2025-06-21T17:08:25.217647+00:00 | Debian Oval Importer | Affected by | VCID-6y3x-kyj7-aaaf | https://www.debian.org/security/oval/oval-definitions-buster.xml.bz2 | 36.1.3 |
| 2025-06-21T05:55:01.373886+00:00 | Debian Oval Importer | Affected by | VCID-3gua-vux5-aaaq | None | 36.1.3 |
| 2025-06-21T05:29:31.893768+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | None | 36.1.3 |
| 2025-06-21T02:20:22.893246+00:00 | Debian Oval Importer | Affected by | VCID-6ypc-78mx-aaac | None | 36.1.3 |
| 2025-06-20T22:07:43.646302+00:00 | Debian Importer | Affected by | VCID-6y3x-kyj7-aaaf | None | 36.1.3 |
| 2025-06-08T11:46:08.875599+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 | 36.1.0 |
| 2025-06-08T09:51:45.658965+00:00 | Debian Oval Importer | Affected by | VCID-6y3x-kyj7-aaaf | https://www.debian.org/security/oval/oval-definitions-buster.xml.bz2 | 36.1.0 |
| 2025-06-07T23:33:35.814246+00:00 | Debian Oval Importer | Affected by | VCID-3gua-vux5-aaaq | None | 36.1.0 |
| 2025-06-07T23:07:19.891527+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | None | 36.1.0 |
| 2025-06-07T19:44:11.223603+00:00 | Debian Oval Importer | Affected by | VCID-6ypc-78mx-aaac | None | 36.1.0 |
| 2025-04-12T21:10:16.199547+00:00 | Debian Oval Importer | Affected by | VCID-6ypc-78mx-aaac | https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 | 36.0.0 |
| 2025-04-12T20:44:03.931050+00:00 | Debian Oval Importer | Affected by | VCID-3gua-vux5-aaaq | https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 | 36.0.0 |
| 2025-04-12T17:31:01.166298+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 | 36.0.0 |
| 2025-04-08T08:23:58.035830+00:00 | Debian Oval Importer | Affected by | VCID-6y3x-kyj7-aaaf | https://www.debian.org/security/oval/oval-definitions-buster.xml.bz2 | 36.0.0 |
| 2025-04-07T22:05:36.659991+00:00 | Debian Oval Importer | Affected by | VCID-3gua-vux5-aaaq | None | 36.0.0 |
| 2025-04-07T21:39:24.499654+00:00 | Debian Oval Importer | Affected by | VCID-kfap-b6t7-aaam | None | 36.0.0 |
| 2025-04-07T18:21:59.025122+00:00 | Debian Oval Importer | Affected by | VCID-6ypc-78mx-aaac | None | 36.0.0 |
| 2025-04-04T00:46:05.065178+00:00 | Debian Importer | Affected by | VCID-6y3x-kyj7-aaaf | None | 36.0.0 |
| 2025-02-21T14:04:51.345736+00:00 | Debian Importer | Affected by | VCID-6y3x-kyj7-aaaf | None | 35.1.0 |
| 2024-04-26T05:24:38.224703+00:00 | Debian Importer | Affected by | VCID-6y3x-kyj7-aaaf | None | 34.0.0rc4 |
| 2024-01-05T09:53:25.788328+00:00 | Debian Importer | Affected by | VCID-6y3x-kyj7-aaaf | None | 34.0.0rc1 |