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Ubuntu 16.04 ESM : PySAML2 vulnerability (USN-5066-2)

medium Nessus Plugin ID 153361

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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-5066-2 advisory.

 USN-5066-1 fixed a vulnerability in PySAML2. This update provides the corresponding update for Ubuntu 16.04 ESM.

 Original advisory details:

 Brian Wolff discovered that PySAML2 incorrectly validated cryptographic

 signatures. A remote attacker could possibly use this issue to alter SAML

 documents.

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 python-pysaml2 and / or python3-pysaml2 packages.

See Also

https://ubuntu.com/security/notices/USN-5066-2

Plugin Details

Severity: Medium

ID: 153361

File Name: ubuntu_USN-5066-2.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/14/2021

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: 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-2021-21239

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python-pysaml2, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:python3-pysaml2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/8/2021

Vulnerability Publication Date: 1/21/2021

Reference Information

CVE: CVE-2021-21239

USN: 5066-2