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Debian DLA-2365-1 : netty-3.9 security update
critical Nessus Plugin ID 140296
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Synopsis
The remote Debian host is missing a security update.Description
Several vulnerabilities have been discovered in netty-3.9, a Java NIO client/server socket framework.CVE-2019-16869
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
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.'
CVE-2019-20445
HttpObjectDecoder.java 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.
For Debian 9 stretch, these problems have been fixed in version 3.9.9.Final-1+deb9u1.
We recommend that you upgrade your netty-3.9 packages.
For the detailed security status of netty-3.9 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/netty-3.9
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected libnetty-3.9-java package.See Also
https://lists.debian.org/debian-lts-announce/2020/09/msg00004.html
https://packages.debian.org/source/stretch/netty-3.9
https://security-tracker.debian.org/tracker/source-package/netty-3.9
Plugin Details
Severity: Critical
ID: 140296
File Name: debian_DLA-2365.nasl
Version: 1.3
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 9/8/2020
Updated: 2/21/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2019-20445
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:libnetty-3.9-java
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/4/2020
Vulnerability Publication Date: 9/26/2019