Strix
26.1K

CVE-2019-9512

HIGHCVSS 7.5/10EPSS 83.43%

Last modified

CVE-2019-9512 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 83.43% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
83.43%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AppleSwiftnio>= 1.0.0, <= 1.4.0
ApacheTraffic Server>= 6.0.0, <= 6.2.3
ApacheTraffic Server>= 7.0.0, <= 7.1.6
ApacheTraffic Server>= 8.0.0, <= 8.0.3
DebianDebian Linux10.0
NodejsNode.Js>= 8.0.0, <= 8.8.1
NodejsNode.Js>= 8.9.0, < 8.16.1
NodejsNode.Js>= 10.0.0, <= 10.12.0
NodejsNode.Js>= 10.13.0, < 10.16.3
NodejsNode.Js>= 12.0.0, < 12.8.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-9512?
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.
How severe is CVE-2019-9512?
CVE-2019-9512 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 83.43% probability of exploitation in the next 30 days.
How do I fix CVE-2019-9512?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-9512?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST