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Ubuntu 16.04 ESM : Python vulnerabilities (USN-5083-1)

high Nessus Plugin ID 153448

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5083-1 advisory.

 It was discovered that Python incorrectly handled certain RFCs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM. (CVE-2021-3733)

 It was discovered that Python incorrectly handled certain server responses. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-3737)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-5083-1

Plugin Details

Severity: High

ID: 153448

File Name: ubuntu_USN-5083-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 9/16/2021

Updated: 8/27/2024

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: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-3737

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python3.5, p-cpe:/a:canonical:ubuntu_linux:python3.4, p-cpe:/a:canonical:ubuntu_linux:idle-python3.5, p-cpe:/a:canonical:ubuntu_linux:libpython3.5, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:python3.5-venv, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-dev, p-cpe:/a:canonical:ubuntu_linux:python3.4-examples, p-cpe:/a:canonical:ubuntu_linux:python3.5-examples, p-cpe:/a:canonical:ubuntu_linux:python3.4-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-testsuite, p-cpe:/a:canonical:ubuntu_linux:python3.5-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.4, p-cpe:/a:canonical:ubuntu_linux:python3.4-venv, p-cpe:/a:canonical:ubuntu_linux:idle-python3.4, p-cpe:/a:canonical:ubuntu_linux:python3.5-minimal, p-cpe:/a:canonical:ubuntu_linux:python3.4-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-stdlib, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-testsuite, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-stdlib, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-minimal

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: 9/16/2021

Vulnerability Publication Date: 9/16/2021

Reference Information

CVE: CVE-2021-3733, CVE-2021-3737

IAVA: 2021-A-0497-S

USN: 5083-1