Strix
26.1K

CVE-2019-20444

CRITICALCVSS 9.1/10EPSS 8.68%

Last modified

CVE-2019-20444 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold.". EPSS estimates a 8.68% chance of exploitation in the next 30 days.

Description

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
8.68%

94.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NettyNetty< 4.1.44
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0
FedoraprojectFedora33
CanonicalUbuntu Linux18.04
RedhatJboss Amq Clients2
RedhatJboss Enterprise Application Platform7.2
RedhatJboss Enterprise Application Platform7.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-20444?
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
How severe is CVE-2019-20444?
CVE-2019-20444 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 8.68% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20444?
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-2019-20444?

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

Scan your code now

Source: NVD / NIST