Fix handling of parameter-entity references
There were two bugs where parameter-entity references could lead to an
unexpected change of the input buffer in xmlParseNameComplex and
xmlDictLookup being called with an invalid pointer.
Fixes bug 781205 and bug 781361
CVE: CVE-2017-9049 CVE-2017-9050
(From OE-Core rev: 2300762fef8fc8e3e56fb07fd4076c1deeba0a9b)
(From OE-Core rev: a409c50a09b12caa434b2b06bdcfb6beba43f67f)
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
