Local users could gain root privileges by chrooting into arbitrary directories.
|Package||app-shells/rssh on all architectures|
|Affected versions||< 2.3.0|
|Unaffected versions||>= 2.3.0|
rssh is a restricted shell, allowing only a few commands like scp or sftp. It is often used as a complement to OpenSSH to provide limited access to users.
Max Vozeler discovered that the rssh_chroot_helper command allows local users to chroot into arbitrary directories.
A local attacker could exploit this vulnerability to gain root privileges by chrooting into arbitrary directories.
There is no known workaround at this time.
All rssh users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-shells/rssh-2.3.0"
December 27, 2005
December 27, 2005: 01