CVE-2019-20444
Critical
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."
SeverityCritical
CVSS9.1
Exploit probability—
Product
Netty
PublishedJan 29, 2020
First seenJan 29, 2020
How to fix
Update
- netty netty4.1.44 or later
- io.netty:netty-codec-http4.1.44 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2020:0497
- access.redhat.com/errata/RHSA-2020:0601
- access.redhat.com/errata/RHSA-2020:0606
- access.redhat.com/errata/RHSA-2020:0605
- access.redhat.com/errata/RHSA-2020:0567
- access.redhat.com/errata/RHSA-2020:0806
- access.redhat.com/errata/RHSA-2020:0811
- access.redhat.com/errata/RHSA-2020:0804
- access.redhat.com/errata/RHSA-2020:0805
- usn.ubuntu.com/4532-1/
- lists.fedoraproject.org/archives/list/[email protected]/message/TS6VX7OMXPDJIU5LRGUAHRK6MENAVJ46/
- debian.org/security/2021/dsa-4885
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netty netty | v < 4.1.44 | 4.1.44 |
| debian debian_linux | 8.0, 9.0, 10.0 | — |
| fedoraproject fedora | 33 | — |
| canonical ubuntu_linux | 18.04 | — |
| redhat jboss_amq_clients | 2 | — |
| redhat jboss_enterprise_application_platform | 7.2, 7.3 | — |
| io.netty:netty-codec-httpMaven | v < 4.1.44 | 4.1.44 |
| org.jboss.netty:nettyMaven | No range specified | — |
| io.netty:nettyMaven | No range specified | — |
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