Detections
Analytics

Alpine: libexpat, multiple expat packages: security update to 2.2.7-r0

high Tenable Cloud Security Plugin ID 423887

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons
 could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be
 usable for denial-of-service attacks). (CVE-2018-20843)

See Also

https://security.alpinelinux.org/vuln/CVE-2018-20843

Plugin Details

Severity: High

ID: 423887

Version: Revision 1.8

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2018-20843

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 6/24/2019

Reference Information

CVE: CVE-2018-20843