Detections
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Ubuntu 18.04 LTS : Netty vulnerabilities (USN-4532-1)

critical Nessus Plugin ID 140753

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4532-1 advisory.

 It was discovered that Netty incorrectly handled certain HTTP headers.

 By sending an HTTP header with whitespace before the colon, a remote

 attacker could possibly use this issue to perform an HTTP request

 smuggling attack. (CVE-2019-16869)

 It was discovered that Netty incorrectly handled certain HTTP headers.

 By sending an HTTP header that lacks a colon, a remote attacker could

 possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-20444)

 It was discovered that Netty incorrectly handled certain HTTP headers.

 By sending a Content-Length header accompanied by a second Content-Length

 header, or by a Transfer-Encoding header, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack.

 (CVE-2019-20445)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected libnetty-3.9-java package.

See Also

https://ubuntu.com/security/notices/USN-4532-1

Plugin Details

Severity: Critical

ID: 140753

File Name: ubuntu_USN-4532-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/23/2020

Updated: 8/29/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, 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:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libnetty-3.9-java

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2020

Vulnerability Publication Date: 9/26/2019

Reference Information

CVE: CVE-2019-16869, CVE-2019-20444, CVE-2019-20445

USN: 4532-1