Vulnerability CVE-2019-16869
Published: 2019-09-26

Description:
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.

Type:

CWE-444

 (Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling'))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Netty project -> Netty 
Netty -> Netty 

 References:
https://github.com/netty/netty/compare/netty-4.1.41.Final...netty-4.1.42.Final
https://github.com/netty/netty/issues/9571
https://lists.apache.org/thread.html/2494a2ac7f66af6e4646a4937b17972a4ec7cd3c7333c66ffd6c639d@%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/2e1cf538b502713c2c42ffa46d81f4688edb5676eb55bd9fc4b4fed7@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/37ed432b8eb35d8bd757f53783ec3e334bd51f514534432bea7f1c3d@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/380f6d2730603a2cd6b0a8bea9bcb21a86c199147e77e448c5f7390b@%3Ccommits.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/3e6d7aae1cca10257e3caf2d69b22f74c875f12a1314155af422569d@%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/6e1e34c0d5635a987d595df9e532edac212307243bb1b49eead6d55b@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/76540c8b0ed761bfa6c81fa28c13057f13a5448aed079d656f6a3c79@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/9128111213b7b734ffc85db08d8f789b00a85a7f241b708e55debbd0@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/bdf7a5e597346a75d2d884ca48c767525e35137ad59d8f10b8fc943c@%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/cbf6e6a04cb37e9320ad20e437df63beeab1755fc0761918ed5c5a6e@%3Ccommits.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/cf5aa087632ead838f8ac3a42e9837684e7afe6e0fcb7704e0c73bc0@%3Ccommits.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/d3eb0dbea75ef5c400bd49dfa1901ad50be606cca3cb29e0d01b6a54@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/e39931d7cdd17241e69a0a09a89d99d7435bcc59afee8a9628d67769@%3Cdev.zookeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/09/msg00035.html
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