high
7.5
CWE
416
Advisory Published
Updated

CVE-2022-43680: Apache OpenOffice: "Use after free" fixed in libexpat

First published: Mon Oct 24 2022(Updated: )

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

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

Affected SoftwareAffected VersionHow to fix
debian/expat<=2.2.6-2+deb10u4
2.2.6-2+deb10u6
2.2.10-2+deb11u5
2.5.0-1
2.5.0-2
debian/expat<=2.2.10-2<=2.4.9-1
2.5.0-1
2.2.10-2+deb11u5
redhat/expat<0:2.2.5-10.el8_7.1
0:2.2.5-10.el8_7.1
redhat/expat<0:2.4.9-1.el9_1.1
0:2.4.9-1.el9_1.1
redhat/expat<2.5.0
2.5.0
Libexpat Project Libexpat<=2.4.9
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Fedoraproject Fedora=37
Netapp Baseboard Management Controller H300s Firmware
Netapp Baseboard Management Controller H300s
Netapp Baseboard Management Controller H500s Firmware
Netapp Baseboard Management Controller H500s
Netapp Baseboard Management Controller H700s Firmware
Netapp Baseboard Management Controller H700s
Netapp Baseboard Management Controller H410s Firmware
Netapp Baseboard Management Controller H410s
Netapp Baseboard Management Controller H410c Firmware
Netapp Baseboard Management Controller H410c
Netapp Active Iq Unified Manager Vmware Vsphere
NetApp OnCommand Workflow Automation
Netapp Solidfire \& Hci Management Node
Netapp Hci Compute Node Firmware
Netapp Hci Compute Node
Google Android
<=2.4.9
=10.0
=11.0
=35
=36
=37
All of
All of
All of
All of
All of
All of

Remedy

https://github.com/libexpat/libexpat/issues/649

Remedy

https://github.com/libexpat/libexpat/pull/616

Remedy

https://github.com/libexpat/libexpat/pull/650

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-43680?

    CVE-2022-43680 is a use-after-free vulnerability in the Expat package, specifically in the destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

  • What is the severity of CVE-2022-43680?

    CVE-2022-43680 has a severity level of 7.5 (high).

  • Which software is affected by CVE-2022-43680?

    CVE-2022-43680 affects the expat package in various versions on Debian, Red Hat, Google Android, and other platforms.

  • How can I fix CVE-2022-43680?

    To fix CVE-2022-43680, update the affected expat package to the recommended versions provided by the vendor.

  • Where can I find more information about CVE-2022-43680?

    More information about CVE-2022-43680 can be found in the references section of the vulnerability report.

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