Alpine: multiple expat packages, libexpat: security update to 2.0.1-r0 (deprecated)

medium Tenable Cloud Security Plugin ID 401324

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for
Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML
document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function
in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720. (CVE-2009-3560)

- The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML,
w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service
(application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a
different vulnerability than CVE-2009-2625. (CVE-2009-3720)

Plugin Details

Severity: Medium

ID: 401324

Version: Revision 1.23

Type: Local

Family: Alpine Linux Local Security Checks

Published: 8/16/2023

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: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2009-3720

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:N/A:H

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/17/2010

Vulnerability Publication Date: 1/17/2009

Reference Information

CVE: CVE-2009-3560, CVE-2009-3720

BID: 36097, 37203

Detections

Analytics