Fedora: FEDORA-2021-e3ed1ba38b Critical: Libxml2 Memory Issue

This library allows to manipulate XML files. It includes support

to read, modify and write XML and HTML files. There is DTDs support

this includes parsing and validation even with complex DtDs, either

at parse time or later once the document has been modified. The output

can be a simple SAX stream or and in-memory DOM like representations.

In this case one can use the built-in XPath and XPointer implementation

to select sub nodes or ranges. A flexible Input/Output mechanism is

available, with existing HTTP and FTP modules and combined to an

URI library.

Fix CVE-2021-3516, CVE-2021-3517, CVE-2021-3518 and CVE-2021-3537

* Thu May 6 2021 David King - 2.9.10-12

- Fix CVE-2021-3537 (#1956524)

* Wed May 5 2021 David King - 2.9.10-11

- Fix CVE-2021-3516 (#1954227)

- Fix CVE-2021-3517 (#1954234)

- Fix CVE-2021-3518 (#1954243)

[ 1 ] Bug #1954227 - CVE-2021-3516 libxml2: use-after-free in xmlEncodeEntitiesInternal() in entities.c [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1954227

[ 2 ] Bug #1954234 - CVE-2021-3517 libxml2: heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1954234

[ 3 ] Bug #1954243 - CVE-2021-3518 libxml2: use-after-free in xmlXIncludeDoProcess() in xinclude.c [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1954243

[ 4 ] Bug #1956524 - CVE-2021-3537 libxml2: NULL pointer dereference in valid.c in xmlValidBuildAContentModel [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1956524

su -c 'dnf upgrade --advisory FEDORA-2021-e3ed1ba38b' at the command

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

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

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/

List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines

List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure