scilab-bin 4.1.2 allows local users to overwrite arbitrary files via a symlink attack on (a) /tmp/SciLink#####1, (b) /tmp/SciLink#####2, (c) /tmp/SciLink#####3, (d) /tmp/*.#####, (e) /tmp/*.#####.res, (f) /tmp/*.#####.err, and (g) /tmp/*.#####.diff temporary files, related to the (1) scilink, (2) scidoc, and (3) scidem scripts.

The (1) scilab, (2) scilab-cli, and (3) scilab-adv-cli scripts in Scilab 5.2.2 place a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse shared library in the current working directory.