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Fedora 36: FEDORA-2022-49db80f821 Critical: Mingw-Expat Use-After Free

fedora
Calendar Grey November 12, 2022
Dist Fedora Esm H88
Fedora 36 enhances mingw-expat with an upgrade to version 2.5.0 and addresses a significant use-after-free vulnerability. Discover the details!
Update to 2.5.0, fixes CVE-2022-43680.

Summary

This is expat, the C library for parsing XML, written by James Clark. Expat

is a stream oriented XML parser. This means that you register handlers with

the parser prior to starting the parse. These handlers are called when the

parser discovers the associated structures in the document being parsed. A

start tag is an example of the kind of structures for which you may

register handlers.

Update to 2.5.0, fixes CVE-2022-43680.

* Fri Nov 4 2022 Sandro Mani - 2.5.0-1

- Update to 2.5.0

[ 1 ] Bug #2140061 - CVE-2022-43680 mingw-expat: expat: use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations [fedora-35]

https://bugzilla.redhat.com/show_bug.cgi?id=2140061

[ 2 ] Bug #2140064 - CVE-2022-43680 mingw-expat: expat: use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations [fedora-36]

https://bugzilla.redhat.com/show_bug.cgi?id=2140064

su -c 'dnf upgrade --advisory FEDORA-2022-49db80f821' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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Change Log

References

Update Instructions

Severity
critical
Lowest
Low
Medium
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Critical

Product: Fedora 36
Version: 2.5.0
Release: 1.fc36
Summary: MinGW Windows port of expat XML parser library

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