Debian Security Advisory

DLA-3165-1 expat -- LTS security update

Date Reported:
28 Oct 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 1022743.
In Mitre's CVE dictionary: CVE-2022-43680.
More information:

In src:expat, an XML parsing C library, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

For Debian 10 buster, this problem has been fixed in version 2.2.6-2+deb10u6.

We recommend that you upgrade your expat packages.

For the detailed security status of expat please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: