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Debian DSA-3759-1 : python-pysaml2 - security update

critical Nessus Plugin ID 96461

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Synopsis

The remote Debian host is missing a security-related update.

Description

Matias P. Brutti discovered that python-pysaml2, a Python implementation of the Security Assertion Markup Language 2.0, did not correctly sanitize the XML messages it handled. This allowed a remote attacker to perform XML External Entity attacks, leading to a wide range of exploits.

Solution

Upgrade the python-pysaml2 packages.

For the stable distribution (jessie), this problem has been fixed in version 2.0.0-1+deb8u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850716

https://packages.debian.org/source/jessie/python-pysaml2

https://www.debian.org/security/2017/dsa-3759

Plugin Details

Severity: Critical

ID: 96461

File Name: debian_DSA-3759.nasl

Version: 3.12

Type: local

Agent: unix

Published: 1/13/2017

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:python-pysaml2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2017

Reference Information

CVE: CVE-2016-10127, CVE-2016-10149

DSA: 3759