7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.005 Low
EPSS
Percentile
76.3%
Package : netty
Version : 1:3.2.6.Final-2+deb8u2
CVE ID : CVE-2019-20444 CVE-2019-20445 CVE-2020-7238
Debian Bug : 950966 950967
Several vulnerabilities were discovered in the HTTP server provided by
Netty, a Java NIO client/server socket framework:
CVE-2019-20444
HttpObjectDecoder.java 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 allows a Content-Length header to be
accompanied by a second Content-Length header, or by a
Transfer-Encoding header.
CVE-2020-7238
Netty allows HTTP Request Smuggling because it mishandles
Transfer-Encoding whitespace (such as a
[space]Transfer-Encoding:chunked line) and a later Content-Length
header.
For Debian 8 "Jessie", these problems have been fixed in version
1:3.2.6.Final-2+deb8u2.
We recommend that you upgrade your netty packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | all | libnetty-java | < 1:3.2.6.Final-2+deb8u2 | libnetty-java_1:3.2.6.Final-2+deb8u2_all.deb |
Debian | 9 | all | libnetty-java | < 1:4.1.7-2+deb9u2 | libnetty-java_1:4.1.7-2+deb9u2_all.deb |
Debian | 10 | all | netty | < 1:4.1.33-1+deb10u2 | netty_1:4.1.33-1+deb10u2_all.deb |
Debian | 8 | all | netty-3.9 | < 3.9.0.Final-1+deb8u1 | netty-3.9_3.9.0.Final-1+deb8u1_all.deb |
Debian | 10 | all | libnetty-java | < 1:4.1.33-1+deb10u2 | libnetty-java_1:4.1.33-1+deb10u2_all.deb |
Debian | 8 | all | libnetty-3.9-java | < 3.9.0.Final-1+deb8u1 | libnetty-3.9-java_3.9.0.Final-1+deb8u1_all.deb |
Debian | 8 | all | netty | < 1:3.2.6.Final-2+deb8u2 | netty_1:3.2.6.Final-2+deb8u2_all.deb |
Debian | 9 | all | netty | < 1:4.1.7-2+deb9u2 | netty_1:4.1.7-2+deb9u2_all.deb |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.005 Low
EPSS
Percentile
76.3%