CVE-2019-9511

Originalbeschreibung

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Betroffene Software

• nginx ≥ 1.9.5 < 1.16.1≥ 1.17.0 ≤ 1.17.2 Behoben in: 1.16.1 exakte Übereinstimmung

Details

Veröffentlicht

2019-08-14

Zuletzt geändert

2024-08-05

CVSS-Vektor

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400

EPSS (Ausnutzungswahrscheinlichkeit in 30 Tagen)

59.55% (Perzentil 99)

Referenzen

• cve.org/CVE-2019-9511
• nvd.nist.gov/vuln/detail/CVE-2019-9511
• kb.cert.org/vuls/id/605641/
• usn.ubuntu.com/4099-1/
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T...
• seclists.org/bugtraq/2019/Aug/40
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L...
• www.debian.org/security/2019/dsa-4505
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J...
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B...
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X...
• seclists.org/bugtraq/2019/Sep/1
• www.debian.org/security/2019/dsa-4511
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P...