Linux Distros Unpatched Vulnerability : CVE-2020-29509

medium Nessus Plugin ID 223571

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- The encoding/xml package in Go (all versions) does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.
(CVE-2020-29509)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: Medium

ID: 223571

File Name: unpatched_CVE_2020_29509.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 8/31/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

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 Score Source: CVE-2020-29509

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:golang-1.6, p-cpe:/a:redhat:enterprise_linux:golang-bin, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:golang-tests, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:golang, p-cpe:/a:centos:centos:golang-bin, p-cpe:/a:canonical:ubuntu_linux:golang-1.14, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:golang, p-cpe:/a:canonical:ubuntu_linux:golang-1.13, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:golang-misc, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:golang-misc, p-cpe:/a:redhat:enterprise_linux:golang-docs, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:golang-src, p-cpe:/a:redhat:enterprise_linux:golang-src, p-cpe:/a:centos:centos:golang-docs, p-cpe:/a:canonical:ubuntu_linux:golang-1.8, p-cpe:/a:redhat:enterprise_linux:golang-tests, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:golang-1.10, p-cpe:/a:canonical:ubuntu_linux:golang-1.9, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:debian:debian_linux:golang-1.15

Required KB Items: Host/OS/identifier, Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/14/2020

Reference Information

CVE: CVE-2020-29509

Detections

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