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Ubuntu 16.04 ESM : nginx vulnerability (USN-5371-3)

high Nessus Plugin ID 165813

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-5371-3 advisory.

 USN-5371-1 and USN-5371-2 fixed several vulnerabilities in nginx. This update provides the corresponding update for CVE-2020-11724 for Ubuntu 16.04 ESM.

 Original advisory details:

 It was discovered that nginx Lua module mishandled certain inputs.

 An attacker could possibly use this issue to perform an HTTP Request

 Smuggling attack. This issue was fixed for Ubuntu 18.04 LTS and

 Ubuntu 20.04 LTS. (CVE-2020-11724)

 It was discovered that nginx Lua module mishandled certain inputs.

 An attacker could possibly use this issue to disclose sensitive

 information. This issue only affects Ubuntu 18.04 LTS and

 Ubuntu 20.04 LTS. (CVE-2020-36309)

 It was discovered that nginx mishandled the use of

 compatible certificates among multiple encryption protocols.

 If a remote attacker were able to intercept the communication,

 this issue could be used to redirect traffic between subdomains.

 (CVE-2021-3618)

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

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5371-3

Plugin Details

Severity: High

ID: 165813

File Name: ubuntu_USN-5371-3.nasl

Version: 1.5

Type: local

Agent: unix

Published: 10/8/2022

Updated: 8/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2020-11724

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:nginx-extras, p-cpe:/a:canonical:ubuntu_linux:nginx-common, p-cpe:/a:canonical:ubuntu_linux:nginx-core, p-cpe:/a:canonical:ubuntu_linux:nginx-light, p-cpe:/a:canonical:ubuntu_linux:nginx-full, p-cpe:/a:canonical:ubuntu_linux:nginx

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2022

Vulnerability Publication Date: 4/12/2020

Reference Information

CVE: CVE-2020-11724

USN: 5371-3