Debian dla-3893 : expat - security update

critical Nessus Plugin ID 207413

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3893 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3893-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin September 19, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : expat Version : 2.2.10-2+deb11u6 CVE ID : CVE-2023-52425 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492 Debian Bug : 1063238 1080149 1080150 1080152

Multiple vulnerabilities were found in expat, an XML parsing C library, which could lead to Denial of Service, memory corruption or arbitrary code execution.

CVE-2023-52425

Snild Dolkow discovered that when parsing a large token that requires multiple buffer fills to complete, expat has to re-parse the token from start multiple times, which could lead to Denial of Service via resource exhaustion.

CVE-2024-45490

TaiYou discovered that xmlparse.c does not reject a negative length for XML_ParseBuffer(), which may cause memory corruption or code execution.

CVE-2024-45491

TaiYou discovered that xmlparse.c has an integer overflow for `nDefaultAtts` on 32-bit platforms, which may cause denial of service or code execution.

CVE-2024-45492

TaiYou discovered that xmlparse.c has an integer overflow for `m_groupSize` on 32-bit platforms, which may cause denial of service or code execution.

For Debian 11 bullseye, these problems have been fixed in version 2.2.10-2+deb11u6.

We recommend that you upgrade your expat packages.

For the detailed security status of expat please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/expat

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the expat packages.

Plugin Details

Severity: Critical

ID: 207413

File Name: debian_DLA-3893.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 9/19/2024

Updated: 3/21/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.98

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:expat, p-cpe:/a:debian:debian_linux:libexpat1, p-cpe:/a:debian:debian_linux:libexpat1-udeb, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libexpat1-dev

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/19/2024

Vulnerability Publication Date: 2/4/2024

Reference Information

CVE: CVE-2023-52425, CVE-2024-45490, CVE-2024-45491, CVE-2024-45492

IAVA: 2024-A-0134-S, 2024-A-0543-S

Detections

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