CVE-2019-20444

CRITICAL

Netty < 4.1.44 - HTTP Request Smuggling

Title source: rule

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."

References (116)

[Mailing List] https://lists.apache.org/thread.html/re45ee9256d3233c31d78e59ee59c7dc841c7fbd83d0769285b41e948@%3Ccommits.druid.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r70b1ff22ee80e8101805b9a473116dd33265709007d2deb6f8c80bf2@%3Ccommits.druid.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/rff210a24f3a924829790e69eaefa84820902b7b31f17c3bf2def9114@%3Ccommits.druid.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/ra9fbfe7d4830ae675bf34c7c0f8c22fc8a4099f65706c1bc4f54c593@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r96e08f929234e8ba1ef4a93a0fd2870f535a1f9ab628fabc46115986@%3Cdev.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r804895eedd72c9ec67898286eb185e04df852b0dd5fe53cf5b6138f9@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/ra2ace4bcb5cf487f72cbcbfa0f8cc08e755ec2b93d7e69f276148b08@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r36fcf538b28f2029e8b4f6b9a772f3b107913a78f09b095c5b153a62@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r640eb9b3213058a963e18291f903fc1584e577f60035f941e32f760a@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r059b042bca47be53ff8a51fd04d95eb01bb683f1afa209db136e8cb7@%3Cdev.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r489886fe72a98768eed665474cba13bad8d6fe0654f24987706636c5@%3Cdev.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r34912a9b1a5c269a77b8be94ef6fb6d1e9b3c69129719dc00f01cf0b@%3Cdev.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r1fcccf8bdb3531c28bc9aa605a6a1bea7e68cef6fc12e01faafb2fb5@%3Cissues.zookeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r6945f3c346b7af89bbd3526a7c9b705b1e3569070ebcd0964bcedd7d@%3Cissues.zookeeper.apache.org%3E

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2020:0497

[Mailing List] https://lists.apache.org/thread.html/r959474dcf7f88565ed89f6252ca5a274419006cb71348f14764b183d@%3Ccommits.cassandra.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/rc7eb5634b71d284483e58665b22bf274a69bd184d9bd7ede52015d91@%3Ccommon-issues.hadoop.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r90030b0117490caed526e57271bf4d7f9b012091ac5083c895d16543@%3Ccommon-issues.hadoop.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/re0b78a3d0a4ba2cf9f4e14e1d05040bde9051d5c78071177186336c9@%3Ccommon-issues.hadoop.apache.org%3E

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2020/02/msg00017.html

... and 96 more

Scores

CVSS v3 9.1

EPSS 0.1487

EPSS Percentile 94.6%

Attack Vector NETWORK

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

Details

CWE

CWE-444

Status published

Products (12)

canonical/ubuntu_linux 18.04

debian/debian_linux 8.0

debian/debian_linux 9.0

debian/debian_linux 10.0

fedoraproject/fedora 33

io.netty/netty 0Maven

io.netty/netty-codec-http 0 - 4.1.44Maven

netty/netty < 4.1.44

org.jboss.netty/netty 0Maven

redhat/jboss_amq_clients 2

... and 2 more

Published Jan 29, 2020

Tracked Since Feb 18, 2026