[Bug 1281930] New: libxml2: Out-of-bounds heap read on 0xff char in xml declaration

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1281930

            Bug ID: 1281930
           Summary: libxml2: Out-of-bounds heap read on 0xff char in xml
                    declaration
           Product: Security Response
         Component: vulnerability
          Keywords: Security
          Severity: low
          Priority: low
          Assignee: security-response-team at redhat.com
          Reporter: amaris at redhat.com
                CC: athmanem at gmail.com, c.david86 at gmail.com,
                    erik-fedora at vanpienbroek.nl,
                    fedora-mingw at lists.fedoraproject.org,
                    ktietz at redhat.com, lfarkas at lfarkas.org,
                    ohudlick at redhat.com, rjones at redhat.com,
                    veillard at redhat.com



An out-of-bounds heap read in xmlParseXMLDecl happens when a file containing
unfinished xml declaration, e.g. <?xml versionencoding="ISO88598", is followed
by 0xff byte.

Upstream bug:

https://bugzilla.gnome.org/show_bug.cgi?id=751631

Upstream patch:

https://git.gnome.org/browse/libxml2/commit/?id=709a952110e98621c9b78c4f26462a9d8333102e

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