Race condition in shtool 2.0.1 and earlier allows local users to create or modify arbitrary files via a symlink attack on the .shtool.$$ temporary file. http://www.zataz.net/adviso/shtool-05252005.txt mm contains shtool in its source.
shtool is used at build-time, and is not part of either the mm or mm-devel binary packages.
Correct, this issue (while very remote I know) is only exploitable if mm is rebuilt from source. The advisory states that shtool is only vulnerable if it is used for the following operations: tarball, subst, scpp and path. I have not verified if mm uses these or not.
During package build, the makefile calls shtool for these operations: version mkdir install If you attempt to make a new tarball, either with the "snap" or "dist" targets (we don't), then it's used for: fixperm version tarball So I don't think we have a problem here.
Closure note: if we update to a newer version of mm, the problem goes away even for the make targets we don't call, so marking this WONTFIX.
... except I actually marked it DEFERRED.