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CVE

CVE-2019-9514

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker op

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.

HIGH · CVSS 7.5 EPSS 0.09322
Schedule remediation
  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Affected Products & Versions

41
apple swiftnio>= 1.0.0 and <= 1.4.0
apache traffic server>= 6.0.0 and <= 6.2.3
apache traffic server>= 7.0.0 and <= 7.1.6
apache traffic server>= 8.0.0 and <= 8.0.3
debian linuxall versions
synology skynasall versions

Affected Packages

3
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go golang.org/x/net HIGH fixed in 0.0.0-20190813141303-74dc4d7220e7
Go stdlib fixed in 1.11.13, 1.12.8
crates.io h2 fixed in 0.3.24, 0.4.2

Detection Rules (IDS/IPS)

1
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cret@cert.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Aug 2019 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:10804-1
suse-csafopenSUSE-SU-2024:10805-1
rhsaRHSA-2024:5856Moderate
rhsaRHSA-2020:3197Important
🔗

References & Sources

56
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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