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Test ID:
Category:Debian Local Security Checks
Title:Debian LTS: Security Advisory for netty-3.9 (DLA-2365-1)
Summary:The remote host is missing an update for the 'netty-3.9'; package(s) announced via the DLA-2365-1 advisory.
The remote host is missing an update for the 'netty-3.9'
package(s) announced via the DLA-2365-1 advisory.

Vulnerability Insight:
Several vulnerabilities have been discovered in netty-3.9, a Java NIO
client/server socket framework.


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.

CVE-2019-20444 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

CVE-2019-20445 in Netty before 4.1.44 allows a Content-Length
header to be accompanied by a second Content-Length header, or by a
Transfer-Encoding header.

Affected Software/OS:
'netty-3.9' package(s) on Debian Linux.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your netty-3.9 packages.

CVSS Score:

CVSS Vector:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-16869
Common Vulnerability Exposure (CVE) ID: CVE-2019-20444
Common Vulnerability Exposure (CVE) ID: CVE-2019-20445
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