--------------------------------------------------------------------------------Fedora Update Notification
FEDORA-2021-e3ed1ba38b
2021-05-10 01:04:26.835396
--------------------------------------------------------------------------------Name        : libxml2
Product     : Fedora 34
Version     : 2.9.10
Release     : 12.fc34
URL         : https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home
Summary     : Library providing XML and HTML support
Description :
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.

--------------------------------------------------------------------------------Update Information:

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

* 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)
--------------------------------------------------------------------------------References:

  [ 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
--------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use
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/
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Fedora 34: libxml2 2021-e3ed1ba38b

May 9, 2021
Fix CVE-2021-3516, CVE-2021-3517, CVE-2021-3518 and CVE-2021-3537

Summary

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

FEDORA-2021-e3ed1ba38b 2021-05-10 01:04:26.835396 Product : Fedora 34 Version : 2.9.10 Release : 12.fc34 URL : https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home Summary : Library providing XML and HTML support Description : 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

Change Log

References

Update Instructions

Severity
Product : Fedora 34
Version : 2.9.10
Release : 12.fc34
URL : https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home
Summary : Library providing XML and HTML support

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