XPath error : Invalid expression
Posted: Mon Apr 25, 2016 7:21 am
Since doing some yum updates the other week, I'm seeing loads of "XPath error : Invalid expression" in the main httpd error log on my ASL systems.
There's nothing to identify what's causing it - "XPath error : Invalid expression" is all there is on the line.
A Google search indicates this might have something to do with libxml2, and/or possibly a slightly buggy Perl script or maybe a PHP script.
Is anybody else seeing them? It is happening across all my systems, generating loads of "unknown problem somewhere in the system" emails from ASL until I turned email notifications off for that rule (which I don't really want to do!!!).
Here's what I updated just before this started.
Apr 21 13:29:58 Updated: mysql-libs-5.5.49-33.el6.art.x86_64
Apr 21 13:29:59 Updated: mysql-5.5.49-33.el6.art.x86_64
Apr 21 13:30:02 Updated: mysql-server-5.5.49-33.el6.art.x86_64
Apr 21 13:32:16 Updated: nspr-4.11.0-0.1.el6_7.x86_64
Apr 21 13:32:16 Updated: nss-util-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:16 Updated: nss-sysinit-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:17 Updated: nss-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:17 Updated: ossec-hids-2.8.3-53.el6.art.x86_64
Apr 21 13:32:32 Updated: ossec-hids-server-2.8.3-53.el6.art.x86_64
Apr 21 13:32:32 Updated: krb5-libs-1.10.3-42z1.el6_7.x86_64
Apr 21 13:32:32 Updated: krb5-devel-1.10.3-42z1.el6_7.x86_64
Apr 21 13:32:33 Updated: ossec-hids-mysql-2.8.3-53.el6.art.x86_64
Apr 21 13:32:33 Updated: nss-tools-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:33 Updated: mod_qos-11.24-1.el6.art.x86_64
Apr 21 13:32:34 Updated: tzdata-2016c-1.el6.noarch
Apr 21 13:32:34 Updated: libtalloc-2.1.5-1.el6_7.x86_64
Apr 21 13:32:34 Updated: mysqltuner-1.6.9-1.el6.art.noarch
Apr 21 13:32:34 Updated: libtdb-1.3.8-1.el6_7.x86_64
Apr 21 13:32:54 Updated: libtevent-0.9.26-2.el6_7.x86_64
There's nothing to identify what's causing it - "XPath error : Invalid expression" is all there is on the line.
A Google search indicates this might have something to do with libxml2, and/or possibly a slightly buggy Perl script or maybe a PHP script.
Is anybody else seeing them? It is happening across all my systems, generating loads of "unknown problem somewhere in the system" emails from ASL until I turned email notifications off for that rule (which I don't really want to do!!!).
Here's what I updated just before this started.
Apr 21 13:29:58 Updated: mysql-libs-5.5.49-33.el6.art.x86_64
Apr 21 13:29:59 Updated: mysql-5.5.49-33.el6.art.x86_64
Apr 21 13:30:02 Updated: mysql-server-5.5.49-33.el6.art.x86_64
Apr 21 13:32:16 Updated: nspr-4.11.0-0.1.el6_7.x86_64
Apr 21 13:32:16 Updated: nss-util-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:16 Updated: nss-sysinit-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:17 Updated: nss-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:17 Updated: ossec-hids-2.8.3-53.el6.art.x86_64
Apr 21 13:32:32 Updated: ossec-hids-server-2.8.3-53.el6.art.x86_64
Apr 21 13:32:32 Updated: krb5-libs-1.10.3-42z1.el6_7.x86_64
Apr 21 13:32:32 Updated: krb5-devel-1.10.3-42z1.el6_7.x86_64
Apr 21 13:32:33 Updated: ossec-hids-mysql-2.8.3-53.el6.art.x86_64
Apr 21 13:32:33 Updated: nss-tools-3.21.0-0.3.el6_7.x86_64
Apr 21 13:32:33 Updated: mod_qos-11.24-1.el6.art.x86_64
Apr 21 13:32:34 Updated: tzdata-2016c-1.el6.noarch
Apr 21 13:32:34 Updated: libtalloc-2.1.5-1.el6_7.x86_64
Apr 21 13:32:34 Updated: mysqltuner-1.6.9-1.el6.art.noarch
Apr 21 13:32:34 Updated: libtdb-1.3.8-1.el6_7.x86_64
Apr 21 13:32:54 Updated: libtevent-0.9.26-2.el6_7.x86_64