libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified vectors.
https://security.gentoo.org/glsa/201611-10
https://lists.fedoraproject.org/pipermail/package-announce/2015-February/150526.html
https://groups.google.com/forum/#%21msg/libuv/0JZxwLMtsMI/jraczskYWWQJ
https://github.com/libuv/libuv/pull/215
https://github.com/libuv/libuv/commit/66ab38918c911bcff025562cf06237d7fedaba0c
http://www.mandriva.com/security/advisories?name=MDVSA-2015:228