Ubuntu 20.04 : Python vulnerabilities (USN-4333-2)

Medium Nessus Plugin ID 136281


The remote Ubuntu host is missing one or more security-related patches.


USN-4333-1 fixed vulnerabilities in Python. This update provides the corresponding update for Ubuntu 20.04 LTS.

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).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected python3.8 and / or python3.8-minimal packages.

See Also


Plugin Details

Severity: Medium

ID: 136281

File Name: ubuntu_USN-4333-2.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/05/01

Updated: 2020/09/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-18348

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.1

Temporal Score: 5.3

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python3.8, p-cpe:/a:canonical:ubuntu_linux:python3.8-minimal, cpe:/o:canonical:ubuntu_linux:20.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/04/30

Vulnerability Publication Date: 2019/10/23

Reference Information

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

USN: 4333-2