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Vulnerability · Published Feb 18, 2022 · Assigned by mitre

CVE-2022-25313

Medium 6.5

In plain English

A medium-severity security flaw 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 3.3% (higher than 89% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)3.3%top 11.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8expat2.2.5-8.el8_6.2ALSA-2022:5314
AlmaLinux:9expat2.2.10-12.el9_0.2ALSA-2022:5244
AlmaLinux:8expat-devel2.2.5-8.el8_6.2ALSA-2022:5314
AlmaLinux:9expat-devel2.2.10-12.el9_0.2ALSA-2022:5244
AlmaLinux:8mingw32-expat2.4.8-1.el8ALSA-2022:7811
AlmaLinux:8mingw64-expat2.4.8-1.el8ALSA-2022:7811
Alpine:v3.20expat2.4.5-r0ALPINE-CVE-2022-25313
Alpine:v3.21expat2.4.5-r0ALPINE-CVE-2022-25313
Alpine:v3.22expat2.4.5-r0ALPINE-CVE-2022-25313
Alpine:v3.23expat2.4.5-r0ALPINE-CVE-2022-25313
Alpine:v3.24expat2.4.5-r0ALPINE-CVE-2022-25313
Debian:12expat2.4.5-1DEBIAN-CVE-2022-25313
Debian:13expat2.4.5-1DEBIAN-CVE-2022-25313
Debian:14expat2.4.5-1DEBIAN-CVE-2022-25313
Debian:12libxmltokno fix listedDEBIAN-CVE-2022-25313
Rocky Linux:8expat0:2.2.5-8.el8_6.2RLSA-2022:5314
Ubuntu:22.04:LTScadaverno fix listedUBUNTU-CVE-2022-25313
Ubuntu:24.04:LTScadaverno fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10cadaverno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTScadaverno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10cadaverno fix listedUBUNTU-CVE-2022-25313
Ubuntu:22.04:LTSfirefox1:1snap1-0ubuntu1UBUNTU-CVE-2022-25313
Ubuntu:22.04:LTSmatanzano fix listedUBUNTU-CVE-2022-25313
Ubuntu:24.04:LTSmatanzano fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10matanzano fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTSmatanzano fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10matanzano fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10swish-eno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10swish-eno fix listedUBUNTU-CVE-2022-25313
Ubuntu:22.04:LTStdomno fix listedUBUNTU-CVE-2022-25313
Ubuntu:24.04:LTStdomno fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10tdomno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTStdomno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10tdomno fix listedUBUNTU-CVE-2022-25313
Ubuntu:22.04:LTSthunderbirdno fix listedUBUNTU-CVE-2022-25313
Ubuntu:24.04:LTSthunderbirdno fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10thunderbirdno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTSthunderbirdno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10thunderbirdno fix listedUBUNTU-CVE-2022-25313
Ubuntu:22.04:LTSwbxml2no fix listedUBUNTU-CVE-2022-25313
Ubuntu:24.04:LTSwbxml2no fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10wbxml2no fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTSwbxml2no fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10wbxml2no fix listedUBUNTU-CVE-2022-25313
Ubuntu:25.10xmlrpc-cno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.04:LTSxmlrpc-cno fix listedUBUNTU-CVE-2022-25313
Ubuntu:26.10xmlrpc-cno fix listedUBUNTU-CVE-2022-25313

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References