Alpine: libexpat, multiple expat packages: security update to 2.6.3-r0

critical Tenable Cloud Security Plugin ID 423897

Description

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

- An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for
XML_ParseBuffer. (CVE-2024-45490)

- An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for
nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX). (CVE-2024-45491)

- An issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer
overflow for m_groupSize on 32-bit platforms (where UINT_MAX equals SIZE_MAX). (CVE-2024-45492)

Plugin Details

Severity: Critical

ID: 423897

Version: Revision 1.8

Type: Local

Family: Alpine Linux Local Security Checks

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: Medium

Score: 6.9

Percentile: 96.98

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2024-45492

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2024-45490, CVE-2024-45491, CVE-2024-45492

IAVA: 2024-A-0543-S

Detections

Analytics