Florian Weimer from Red Hat reported an issue against libxml2, where a parser which uses libxml2 chokes on a crafted XML document, allocating gigabytes of data. This is a fine line between API misuse and an libxml2 bug. Daniel Veillard have a fix for this issue already.
Patch updstream https://git.gnome.org/browse/libxml2/commit/?id=213f1fe0d76d30eaed6e5853057defc43e6df2c9 Daniel
(In reply to Daniel Veillard from comment #3) > Patch updstream > > https://git.gnome.org/browse/libxml2/commit/ > ?id=213f1fe0d76d30eaed6e5853057defc43e6df2c9 > > Daniel Could you please let me know the version in which the bug has been fixed and provide the URL for downloading the same ?
Acknowledgements: Name: Florian Weimer (Red Hat Product Security)
Statement: Red Hat Product Security has rated this issue as having low security impact, a future update may address this flaw in libxml2.
I don't think the upstream fix is quite right, as explained here: <https://bugzilla.gnome.org/show_bug.cgi?id=748278>
Could you please help with the patch to fix this vulnerability.
(In reply to Aakash from comment #10) > Could you please help with the patch to fix this vulnerability. Aakash, please open a customer support case here: <https://access.redhat.com/support/>. This bug here is a public resource and thus not suitable for responding to support queries, I'm afraid.
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2015:1419 https://rhn.redhat.com/errata/RHSA-2015-1419.html
libxml2-2.9.3-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
libxml2-2.9.3-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
I am getting the following error when i am trying to start apache server with mod security 2.8.0 and updated libxml version 2.9.3: httpd: Syntax error on line 55 of /opt/apache/conf/httpd.conf: Cannot load /opt/apache/modules/mod_security2.so into server: /opt/apache/modules/mod_security2.so: symbol xmlOutputBufferGetSize, version LIBXML2_2.9.0 not defined in file libxml2.so.2 with link time reference Could you please help.
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2015:2550 https://rhn.redhat.com/errata/RHSA-2015-2550.html