GLSA-200810-02 : Portage: Untrusted search path local root vulnerability
Medium Nessus Plugin ID 34383
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200810-02 (Portage: Untrusted search path local root vulnerability)
The Gentoo Security Team discovered that several ebuilds, such as sys-apps/portage, net-mail/fetchmail or app-editors/leo execute Python code using 'python -c', which includes the current working directory in Python's module search path. For several ebuild functions, Portage did not change the working directory from emerge's working directory.
A local attacker could place a specially crafted Python module in a directory (such as /tmp) and entice the root user to run commands such as 'emerge sys-apps/portage' from that directory, resulting in the execution of arbitrary Python code with root privileges.
Do not run 'emerge' from untrusted working directories.
SolutionAll Portage users should upgrade to the latest version:
# cd /root # emerge --sync # emerge --ask --oneshot --verbose '>=sys-apps/portage-18.104.22.168' NOTE: To upgrade to Portage 22.214.171.124 using 126.96.36.199 or prior, you must run emerge from a trusted working directory, such as '/root'.