Description

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.

Remediation

References

CVE-2019-9512

Related Vulnerabilities

ATutor Improper Privilege Management Vulnerability (CVE-2017-1000003)

WordPress Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Vulnerability (CVE-2022-21661)

OpenSSL Other Vulnerability (CVE-2015-0208)

Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2012-4408)

Moodle Exposure of Resource to Wrong Sphere Vulnerability (CVE-2022-40316)

Severity

High

Classification

CVE-2019-9512 CWE-400 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Tags

Missing Update Known Vulnerabilities