8.1
CWE
190
Advisory Published
Updated

CVE-2021-46143: Integer Overflow

First published: Thu Jan 06 2022(Updated: )

expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/expat<0:2.1.0-14.el7_9
0:2.1.0-14.el7_9
redhat/expat<0:2.2.5-4.el8_5.3
0:2.2.5-4.el8_5.3
redhat/xmlrpc-c<0:1.51.0-8.el8
0:1.51.0-8.el8
redhat/expat<2.4.3
2.4.3
Libexpat Project Libexpat<2.4.3
Netapp Active Iq Unified Manager Vmware Vsphere
NetApp Clustered Data ONTAP
Netapp Hci Baseboard Management Controller=h610c
Netapp Hci Baseboard Management Controller=h610s
Netapp Hci Baseboard Management Controller=h615c
NetApp OnCommand Workflow Automation
Netapp Solidfire \& Hci Management Node
Tenable Nessus<8.15.3
Tenable Nessus>=10.0.0<10.1.1
Siemens SINEMA Remote Connect Server<3.1
debian/expat
2.2.10-2+deb11u5
2.2.10-2+deb11u6
2.5.0-1
2.5.0-1+deb12u1
2.6.3-2

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2021-46143.

  • What is the severity level of CVE-2021-46143?

    The severity level of CVE-2021-46143 is high with a CVSS score of 7.8.

  • What is the impact of CVE-2021-46143?

    The highest threat from CVE-2021-46143 is to availability and confidentiality.

  • Which software versions are affected by CVE-2021-46143?

    The affected software versions include Expat (libexpat) before 2.4.3.

  • How can I fix CVE-2021-46143?

    To fix CVE-2021-46143, update Expat to version 2.4.3.

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