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Vulnerability · Published Feb 4, 2024 · Assigned by mitre

CVE-2023-52425

High 7.5

In plain English

A high-severity uncontrolled resource consumption in the expat package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)2.1%top 17.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8expat2.2.5-11.el8_9.1ALSA-2024:1615
AlmaLinux:9expat2.5.0-1.el9_3.1ALSA-2024:1530
AlmaLinux:8expat-devel2.2.5-11.el8_9.1ALSA-2024:1615
AlmaLinux:9expat-devel2.5.0-1.el9_3.1ALSA-2024:1530
AlmaLinux:8xmlrpc-c1.51.0-9.el8_10ALSA-2024:4259
AlmaLinux:8xmlrpc-c-c++1.51.0-9.el8_10ALSA-2024:4259
AlmaLinux:8xmlrpc-c-client1.51.0-9.el8_10ALSA-2024:4259
AlmaLinux:8xmlrpc-c-client++1.51.0-9.el8_10ALSA-2024:4259
AlmaLinux:8xmlrpc-c-devel1.51.0-9.el8_10ALSA-2024:4259
Alpine:v3.20expat2.6.0-r0ALPINE-CVE-2023-52425
Alpine:v3.21expat2.6.0-r0ALPINE-CVE-2023-52425
Alpine:v3.22expat2.6.0-r0ALPINE-CVE-2023-52425
Alpine:v3.23expat2.6.0-r0ALPINE-CVE-2023-52425
Alpine:v3.24expat2.6.0-r0ALPINE-CVE-2023-52425
Debian:12expat2.5.0-1+deb12u2DEBIAN-CVE-2023-52425
Debian:13expat2.6.0-1DEBIAN-CVE-2023-52425
Debian:14expat2.6.0-1DEBIAN-CVE-2023-52425
Debian:12libxmltokno fix listedDEBIAN-CVE-2023-52425
Rocky Linux:8expat0:2.2.5-11.el8_9.1RLSA-2024:1615
Rocky Linux:8xmlrpc-c0:1.51.0-9.el8_10RLSA-2024:4259
Ubuntu:22.04:LTScadaverno fix listedUBUNTU-CVE-2023-52425
Ubuntu:24.04:LTScadaverno fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10cadaverno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.04:LTScadaverno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10cadaverno fix listedUBUNTU-CVE-2023-52425
Ubuntu:22.04:LTSexpat2.4.7-1ubuntu0.3USN-6694-1
Ubuntu:22.04:LTSexpat2.4.7-1ubuntu0.3UBUNTU-CVE-2023-52425
Ubuntu:24.04:LTSexpat2.6.0-1UBUNTU-CVE-2023-52425
Ubuntu:22.04:LTSinsighttoolkit4no fix listedUBUNTU-CVE-2023-52425
Ubuntu:22.04:LTSlibxmltokno fix listedUBUNTU-CVE-2023-52425
Ubuntu:24.04:LTSlibxmltokno fix listedUBUNTU-CVE-2023-52425
Ubuntu:22.04:LTSmatanzano fix listedUBUNTU-CVE-2023-52425
Ubuntu:24.04:LTSmatanzano fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10matanzano fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.04:LTSmatanzano fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10matanzano fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10swish-eno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10swish-eno fix listedUBUNTU-CVE-2023-52425
Ubuntu:22.04:LTStdomno fix listedUBUNTU-CVE-2023-52425
Ubuntu:24.04:LTStdomno fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10tdomno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.04:LTStdomno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10tdomno fix listedUBUNTU-CVE-2023-52425
Ubuntu:22.04:LTSwbxml2no fix listedUBUNTU-CVE-2023-52425
Ubuntu:24.04:LTSwbxml2no fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10wbxml2no fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.04:LTSwbxml2no fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10wbxml2no fix listedUBUNTU-CVE-2023-52425
Ubuntu:25.10xmlrpc-cno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.04:LTSxmlrpc-cno fix listedUBUNTU-CVE-2023-52425
Ubuntu:26.10xmlrpc-cno fix listedUBUNTU-CVE-2023-52425

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References