The prefix variable in the get_or_define_ns function in Lasso before commit 6d854cef4211cdcdbc7446c978f23ab859847cdd allows remote attackers to cause a denial of service (uninitialized memory access and application crash) via unspecified vectors.
https://repos.entrouvert.org/lasso.git/commit/lasso/xml?id=6d854cef4211cdcdbc7446c978f23ab859847cdd
https://bugzilla.redhat.com/show_bug.cgi?id=1199925
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155382.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154355.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154321.html