GLSA-200409-32 : getmail: Filesystem overwrite vulnerability
Low Nessus Plugin ID 14809
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200409-32 (getmail: Filesystem overwrite vulnerability)
David Watson discovered a vulnerability in getmail when it is configured to run as root and deliver mail to the maildirs/mbox files of untrusted local users. A malicious local user can then exploit a race condition, or a similar symlink attack, and potentially cause getmail to create or overwrite files in any directory on the system.
An untrusted local user could potentially create or overwrite files in any directory on the system. This vulnerability may also be exploited to have arbitrary commands executed as root.
Do not run getmail as a privileged user; or, in version 4, use an external MDA with explicitly configured user and group privileges.
SolutionAll getmail users should upgrade to the latest version:
# emerge sync # emerge -pv '>=net-mail/getmail-4.2.0' # emerge '>=net-mail/getmail-4.2.0'