GLSA-200412-05 : mirrorselect: Insecure temporary file creation
Medium Nessus Plugin ID 15922
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200412-05 (mirrorselect: Insecure temporary file creation)
Ervin Nemeth discovered that mirrorselect creates temporary files in world-writable directories with predictable names.
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When mirrorselect is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.
There is no known workaround at this time.
SolutionAll mirrorselect users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-portage/mirrorselect-0.89'