CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
EPSS
Percentile
5.1%
Portage is Gentoo’s package management tool. The dispatch-conf utility allows for easy rollback of configuration file changes and automatic updates of configurations files never modified by users. Gentoolkit is a collection of Gentoo specific administration scripts, one of which is the portage querying tool qpkg.
dispatch-conf and qpkg use predictable filenames for temporary files.
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When an affected script is called, this would result in the file to be overwritten with the rights of the user running the dispatch-conf or qpkg, which could be the root user.
There is no known workaround at this time.
All Portage users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/portage-2.0.51-r3"
All Gentoolkit users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-portage/gentoolkit-0.2.0_pre8-r1"
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Gentoo | any | all | sys-apps/portage | <= 2.0.51-r2 | UNKNOWN |
Gentoo | any | all | app-portage/gentoolkit | <= 0.2.0_pre10 | UNKNOWN |