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Ubuntu 16.04 LTS / 18.04 LTS : Python vulnerabilities (USN-4333-1)

medium Nessus Plugin ID 135894

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Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4333-1 advisory.

 It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348)

 It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)

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-4333-1

Plugin Details

Severity: Medium

ID: 135894

File Name: ubuntu_USN-4333-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/22/2020

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: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2019-18348

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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:python3.6-examples, p-cpe:/a:canonical:ubuntu_linux:python2.7-examples, p-cpe:/a:canonical:ubuntu_linux:python3.4, p-cpe:/a:canonical:ubuntu_linux:libpython3.6, p-cpe:/a:canonical:ubuntu_linux:python3.6-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.5, p-cpe:/a:canonical:ubuntu_linux:python3.6-venv, p-cpe:/a:canonical:ubuntu_linux:idle-python2.7, p-cpe:/a:canonical:ubuntu_linux:python3.5-venv, p-cpe:/a:canonical:ubuntu_linux:libpython2.7-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-dev, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python2.7-dev, p-cpe:/a:canonical:ubuntu_linux:libpython2.7, p-cpe:/a:canonical:ubuntu_linux:python3.6, p-cpe:/a:canonical:ubuntu_linux:libpython2.7-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython2.7-testsuite, p-cpe:/a:canonical:ubuntu_linux:python3.4-examples, p-cpe:/a:canonical:ubuntu_linux:python3.5-examples, p-cpe:/a:canonical:ubuntu_linux:libpython3.6-minimal, p-cpe:/a:canonical:ubuntu_linux:python3.4-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.6-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.6-testsuite, p-cpe:/a:canonical:ubuntu_linux:python3.6-dev, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-testsuite, p-cpe:/a:canonical:ubuntu_linux:libpython3.6-stdlib, p-cpe:/a:canonical:ubuntu_linux:python3.5-dev, p-cpe:/a:canonical:ubuntu_linux:python2.7-minimal, p-cpe:/a:canonical:ubuntu_linux:libpython3.4, p-cpe:/a:canonical:ubuntu_linux:python2.7, 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, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3.4-dev, p-cpe:/a:canonical:ubuntu_linux:libpython2.7-stdlib, p-cpe:/a:canonical:ubuntu_linux:libpython3.5-stdlib, p-cpe:/a:canonical:ubuntu_linux:idle-python3.6, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-testsuite, p-cpe:/a:canonical:ubuntu_linux:libpython3.4-stdlib, p-cpe:/a:canonical:ubuntu_linux:idle-python3.5

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: 4/21/2020

Vulnerability Publication Date: 10/23/2019

Reference Information

CVE: CVE-2019-18348, CVE-2020-8492

USN: 4333-1